diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 000000000..bcb6fb401
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,40 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - development
+    paths:
+      - '.github/workflows/build.yml'
+      - 'packages/**/*'
+      - 'scripts/**/*'
+      - 'babel.config.js'
+      - 'package.json'
+      - 'webpack.config.js'
+  pull_request:
+    branches:
+      - development
+    paths:
+      - '.github/workflows/build.yml'
+      - 'packages/**/*'
+      - 'scripts/**/*'
+      - 'babel.config.js'
+      - 'package.json'
+      - 'webpack.config.js'
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      # we want to run the full build on all os: don't cancel running jobs even if one fails
+      fail-fast: false
+      matrix:
+        os: ['ubuntu-20.04', 'macos-11', 'windows-2019']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+      - name: Install dependencies and build @maxgraph/core
+        run: npm install
diff --git a/.gitignore b/.gitignore
index f19286d4e..43768eec7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ javascript/dist
 .jshintrc
 javascript/examples/**/dist
 .idea/
+*.iml
 dist
 package-lock.json
 
diff --git a/package.json b/package.json
index 5dea14079..9924135a1 100644
--- a/package.json
+++ b/package.json
@@ -18,8 +18,8 @@
   "main": "./javascript/dist/build.js",
   "scripts": {
     "dev": "node ./scripts/dev",
-    "bootstrap": "lerna bootstrap",
-    "postinstall": "lerna bootstrap",
+    "bootstrap": "lerna bootstrap --no-ci",
+    "postinstall": "lerna bootstrap --no-ci",
     "docs": "jsdoc -c jsdoc.json"
   },
   "devDependencies": {
diff --git a/packages/core/src/editor/Editor.ts b/packages/core/src/editor/Editor.ts
index bc12893b1..fce762b42 100644
--- a/packages/core/src/editor/Editor.ts
+++ b/packages/core/src/editor/Editor.ts
@@ -20,7 +20,7 @@ import MaxForm from '../gui/MaxForm';
 import Outline from '../view/other/Outline';
 import Cell from '../view/cell/Cell';
 import Geometry from '../view/geometry/Geometry';
-import { ALIGN, FONT } from '../util/constants';
+import { ALIGN, FONT } from '../util/Constants';
 import { Graph } from '../view/Graph';
 import SwimlaneManager from '../view/layout/SwimlaneManager';
 import LayoutManager from '../view/layout/LayoutManager';
diff --git a/packages/core/src/editor/EditorToolbar.ts b/packages/core/src/editor/EditorToolbar.ts
index ee2352103..9ad836dc5 100644
--- a/packages/core/src/editor/EditorToolbar.ts
+++ b/packages/core/src/editor/EditorToolbar.ts
@@ -10,7 +10,7 @@ import MaxToolbar from '../gui/MaxToolbar';
 import Geometry from '../view/geometry/Geometry';
 import { convertPoint } from '../util/styleUtils';
 import InternalEvent from '../view/event/InternalEvent';
-import { getClientX, getClientY } from '../util/eventUtils';
+import { getClientX, getClientY } from '../util/EventUtils';
 import { makeDraggable } from '../util/gestureUtils';
 import Editor from './Editor';
 import Cell from '../view/cell/Cell';
@@ -20,7 +20,7 @@ import EventObject from '../view/event/EventObject';
 import ObjectCodec from '../serialization/ObjectCodec';
 import CodecRegistry from '../serialization/CodecRegistry';
 import { getChildNodes, getTextContent } from '../util/domUtils';
-import { NODETYPE } from '../util/constants';
+import { NODETYPE } from '../util/Constants';
 import Translations from '../util/Translations';
 import MaxLog from '../gui/MaxLog';
 import Codec from '../serialization/Codec';
diff --git a/packages/core/src/gui/MaxLog.ts b/packages/core/src/gui/MaxLog.ts
index f50b476b1..2a0391a3e 100644
--- a/packages/core/src/gui/MaxLog.ts
+++ b/packages/core/src/gui/MaxLog.ts
@@ -8,10 +8,10 @@
 import Client from '../Client';
 import InternalEvent from '../view/event/InternalEvent';
 import { getInnerHtml, write } from '../util/domUtils';
-import { toString } from '../util/stringUtils';
+import { toString } from '../util/StringUtils';
 import MaxWindow, { popup } from './MaxWindow';
 import { KeyboardEventListener, MouseEventListener } from '../types';
-import { copyTextToClipboard } from '../util/utils';
+import { copyTextToClipboard } from '../util/Utils';
 
 /**
  * A singleton class that implements a simple console.
diff --git a/packages/core/src/gui/MaxPopupMenu.ts b/packages/core/src/gui/MaxPopupMenu.ts
index 58b573f69..dfdbcf010 100644
--- a/packages/core/src/gui/MaxPopupMenu.ts
+++ b/packages/core/src/gui/MaxPopupMenu.ts
@@ -10,7 +10,7 @@ import EventObject from '../view/event/EventObject';
 import Client from '../Client';
 import InternalEvent from '../view/event/InternalEvent';
 import { write } from '../util/domUtils';
-import { isLeftMouseButton } from '../util/eventUtils';
+import { isLeftMouseButton } from '../util/EventUtils';
 import Cell from '../view/cell/Cell';
 import InternalMouseEvent from '../view/event/InternalMouseEvent';
 import { PopupMenuItem } from '../types';
diff --git a/packages/core/src/gui/MaxWindow.ts b/packages/core/src/gui/MaxWindow.ts
index 92f09e19d..e25fd3081 100644
--- a/packages/core/src/gui/MaxWindow.ts
+++ b/packages/core/src/gui/MaxWindow.ts
@@ -11,12 +11,12 @@ import EventSource from '../view/event/EventSource';
 import { fit, getCurrentStyle } from '../util/styleUtils';
 import InternalEvent from '../view/event/InternalEvent';
 import Client from '../Client';
-import { NODETYPE } from '../util/constants';
+import { NODETYPE } from '../util/Constants';
 import { br, write } from '../util/domUtils';
 import Translations from '../util/Translations';
-import { getClientX, getClientY } from '../util/eventUtils';
-import { htmlEntities } from '../util/stringUtils';
-import { utils } from '../util/utils';
+import { getClientX, getClientY } from '../util/EventUtils';
+import { htmlEntities } from '../util/StringUtils';
+import { utils } from '../util/Utils';
 
 /**
  * Basic window inside a document.
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index bb033eb97..3885cac4e 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -126,15 +126,15 @@ export { default as RhombusShape } from './view/geometry/node/RhombusShape';
 export { default as StencilShape } from './view/geometry/node/StencilShape';
 export { default as StencilShapeRegistry } from './view/geometry/node/StencilShapeRegistry';
 
-export * as constants from './util/constants';
+export * as constants from './util/Constants';
 export { default as Guide } from './view/other/Guide';
 export { default as Translations } from './util/Translations';
-export * as utils from './util/utils';
+export * as utils from './util/Utils';
 export * as cloneUtils from './util/cloneUtils';
 export * as domUtils from './util/domUtils';
-export * as eventUtils from './util/eventUtils';
+export * as eventUtils from './util/EventUtils';
 export * as gestureUtils from './util/gestureUtils';
-export * as stringUtils from './util/stringUtils';
+export * as stringUtils from './util/StringUtils';
 export * as xmlUtils from './util/xmlUtils';
 export * as styleUtils from './util/styleUtils';
 export * as mathUtils from './util/mathUtils';
diff --git a/packages/core/src/serialization/Codec.ts b/packages/core/src/serialization/Codec.ts
index 34430de6d..12937af5f 100644
--- a/packages/core/src/serialization/Codec.ts
+++ b/packages/core/src/serialization/Codec.ts
@@ -7,10 +7,10 @@
 
 import CellPath from '../view/cell/CellPath';
 import CodecRegistry from './CodecRegistry';
-import { NODETYPE } from '../util/constants';
+import { NODETYPE } from '../util/Constants';
 import Cell from '../view/cell/Cell';
 import MaxLog from '../gui/MaxLog';
-import { getFunctionName } from '../util/stringUtils';
+import { getFunctionName } from '../util/StringUtils';
 import { importNode, isNode } from '../util/domUtils';
 import ObjectCodec from './ObjectCodec';
 
diff --git a/packages/core/src/serialization/ObjectCodec.ts b/packages/core/src/serialization/ObjectCodec.ts
index 7c16ae07d..816c5624b 100644
--- a/packages/core/src/serialization/ObjectCodec.ts
+++ b/packages/core/src/serialization/ObjectCodec.ts
@@ -9,7 +9,7 @@ import ObjectIdentity from '../util/ObjectIdentity';
 import MaxLog from '../gui/MaxLog';
 import Geometry from '../view/geometry/Geometry';
 import Point from '../view/geometry/Point';
-import { NODETYPE } from '../util/constants';
+import { NODETYPE } from '../util/Constants';
 import { isInteger, isNumeric } from '../util/mathUtils';
 import { getTextContent } from '../util/domUtils';
 import { load } from '../util/MaxXmlRequest';
diff --git a/packages/core/src/util/ObjectIdentity.ts b/packages/core/src/util/ObjectIdentity.ts
index e58d8e4d9..67cc138b2 100644
--- a/packages/core/src/util/ObjectIdentity.ts
+++ b/packages/core/src/util/ObjectIdentity.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 
-import { getFunctionName } from './stringUtils';
+import { getFunctionName } from './StringUtils';
 
 const FIELD_NAME = 'mxObjectId';
 
diff --git a/packages/core/src/util/StringUtils.ts b/packages/core/src/util/StringUtils.ts
index d4d1c2a84..97dd35369 100644
--- a/packages/core/src/util/StringUtils.ts
+++ b/packages/core/src/util/StringUtils.ts
@@ -1,11 +1,11 @@
 import {
   NODETYPE,
   NONE,
-} from './constants';
+} from './Constants';
 import { getTextContent } from './domUtils';
 
 import type { Properties } from '../types';
- 
+
 
 /**
  * Strips all whitespaces from the beginning of the string. Without the
diff --git a/packages/core/src/util/Translations.ts b/packages/core/src/util/Translations.ts
index d9c1185f8..fb266858b 100644
--- a/packages/core/src/util/Translations.ts
+++ b/packages/core/src/util/Translations.ts
@@ -3,7 +3,7 @@
  * Copyright (c) 2006-2016, Gaudenz Alder
  */
 import Client from '../Client';
-import { NONE } from './constants';
+import { NONE } from './Constants';
 import MaxXmlRequest, { get, load } from './MaxXmlRequest';
 
 /**
diff --git a/packages/core/src/util/domUtils.ts b/packages/core/src/util/domUtils.ts
index ae2105924..66c5a92e2 100644
--- a/packages/core/src/util/domUtils.ts
+++ b/packages/core/src/util/domUtils.ts
@@ -1,4 +1,4 @@
-import { NODETYPE } from './constants';
+import { NODETYPE } from './Constants';
 
 /**
  * Returns the text content of the specified node.
@@ -326,7 +326,7 @@ export const importNodeImplementation = (doc: Document, node: Element, allChildr
 export const clearSelection = () => {
   // @ts-ignore
   const sel = window.getSelection ? window.getSelection() : document.selection;
-  
+
   if (sel) {
     if (sel.removeAllRanges) {
       sel.removeAllRanges();
diff --git a/packages/core/src/util/gestureUtils.ts b/packages/core/src/util/gestureUtils.ts
index 152388b36..fd3973f7a 100644
--- a/packages/core/src/util/gestureUtils.ts
+++ b/packages/core/src/util/gestureUtils.ts
@@ -1,6 +1,6 @@
 import DragSource, { DropHandler } from '../view/other/DragSource';
 import Point from '../view/geometry/Point';
-import { TOOLTIP_VERTICAL_OFFSET } from './constants';
+import { TOOLTIP_VERTICAL_OFFSET } from './Constants';
 import { Graph } from '../view/Graph';
 import Cell from '../view/cell/Cell';
 
diff --git a/packages/core/src/util/mathUtils.ts b/packages/core/src/util/mathUtils.ts
index 12c44f7d0..9874db56d 100644
--- a/packages/core/src/util/mathUtils.ts
+++ b/packages/core/src/util/mathUtils.ts
@@ -4,16 +4,15 @@
  * Updated to ES9 syntax by David Morrissey 2021
  * Type definitions from the typed-mxgraph project
  */
- import {
-   DIRECTION,
-   DIRECTION_MASK,
- } from './constants';
- import Point from '../view/geometry/Point';
- import Rectangle from '../view/geometry/Rectangle';
- import CellState from '../view/cell/CellState';
- 
- import type { CellStateStyles } from '../types'; 
-import { getValue, isNullish } from './utils';
+import {
+  DIRECTION,
+  DIRECTION_MASK,
+} from './Constants';
+import Point from '../view/geometry/Point';
+import Rectangle from '../view/geometry/Rectangle';
+import CellState from '../view/cell/CellState';
+import type { CellStateStyles } from '../types';
+import { getValue, isNullish } from './Utils';
 
 /**
  * Converts the given degree to radians.
diff --git a/packages/core/src/util/printUtils.ts b/packages/core/src/util/printUtils.ts
index 49971009b..0d0a5e52b 100644
--- a/packages/core/src/util/printUtils.ts
+++ b/packages/core/src/util/printUtils.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import Client from '../Client';
-import { PAGE_FORMAT_A4_PORTRAIT } from './constants';
+import { PAGE_FORMAT_A4_PORTRAIT } from './Constants';
 import Rectangle from '../view/geometry/Rectangle';
 import { getOuterHtml } from './domUtils';
 import { Graph } from '../view/Graph';
diff --git a/packages/core/src/util/styleUtils.ts b/packages/core/src/util/styleUtils.ts
index 630f7a811..36e5c69ae 100644
--- a/packages/core/src/util/styleUtils.ts
+++ b/packages/core/src/util/styleUtils.ts
@@ -11,7 +11,7 @@ import {
   DEFAULT_FONTSIZE,
   FONT,
   LINE_HEIGHT,
-} from './constants';
+} from './Constants';
 import Point from '../view/geometry/Point';
 import Dictionary from './Dictionary';
 import CellPath from '../view/cell/CellPath';
@@ -30,18 +30,18 @@ import CellArray from '../view/cell/CellArray';
     if (element.style) {
       element.style.cursor = '';
     }
-  
+
     const children = element.children;
-  
+
     if (children) {
       const childCount = children.length;
-  
+
       for (let i = 0; i < childCount; i += 1) {
         removeCursors(children[i] as HTMLElement);
       }
     }
   };
-  
+
   /**
    * Function: getCurrentStyle
    *
@@ -52,7 +52,7 @@ import CellArray from '../view/cell/CellArray';
   export const getCurrentStyle = (element: HTMLElement) => {
     return element ? window.getComputedStyle(element, '') : null;
   };
-  
+
   /**
    * Function: parseCssNumber
    *
@@ -67,16 +67,16 @@ import CellArray from '../view/cell/CellArray';
     } else if (value === 'thick') {
       value = '6';
     }
-  
+
     let n = parseFloat(value);
-  
+
     if (Number.isNaN(n)) {
       n = 0;
     }
-  
+
     return n;
   };
-  
+
   /**
    * Function: setPrefixedStyle
    *
@@ -93,21 +93,21 @@ import CellArray from '../view/cell/CellArray';
     value: string
   ) => {
     let prefix = null;
-  
+
     if (Client.IS_SF || Client.IS_GC) {
       prefix = 'Webkit';
     } else if (Client.IS_MT) {
       prefix = 'Moz';
     }
-  
+
     style.setProperty(name, value);
-  
+
     if (prefix !== null && name.length > 0) {
       name = prefix + name.substring(0, 1).toUpperCase() + name.substring(1);
       style.setProperty(name, value);
     }
   };
-  
+
   /**
    * Function: hasScrollbars
    *
@@ -118,7 +118,7 @@ import CellArray from '../view/cell/CellArray';
    */
   export const hasScrollbars = (node: HTMLElement) => {
     const style = getCurrentStyle(node);
-  
+
     return !!style && (style.overflow === 'scroll' || style.overflow === 'auto');
   };
 
diff --git a/packages/core/src/util/xmlUtils.ts b/packages/core/src/util/xmlUtils.ts
index 8fecfb789..4b1f0fc2f 100644
--- a/packages/core/src/util/xmlUtils.ts
+++ b/packages/core/src/util/xmlUtils.ts
@@ -5,12 +5,12 @@
  * Updated to ES9 syntax by David Morrissey 2021
  * Type definitions from the typed-mxgraph project
  */
-import { DIALECT, NODETYPE, NS_SVG } from './constants';
+import { DIALECT, NODETYPE, NS_SVG } from './Constants';
 import Point from '../view/geometry/Point';
 import Cell from '../view/cell/Cell';
 import CellArray from '../view/cell/CellArray';
 import { Graph } from '../view/Graph';
-import { htmlEntities, trim } from './stringUtils';
+import { htmlEntities, trim } from './StringUtils';
 import TemporaryCellStates from '../view/cell/TemporaryCellStates';
 
 import type { StyleValue } from '../types';
@@ -29,13 +29,13 @@ export const parseXml = (xmlString: string): HTMLElement => {
 }
 
 export const getViewXml = (
-  graph: Graph, 
-  scale: number=1, 
-  cells: CellArray | null=null, 
-  x0: number=0, 
+  graph: Graph,
+  scale: number=1,
+  cells: CellArray | null=null,
+  x0: number=0,
   y0: number=0
 ) => {
-  
+
   if (cells == null) {
     const model = graph.getDataModel();
     cells = new CellArray(<Cell>model.getRoot());
@@ -161,7 +161,7 @@ export const getPrettyXml = (node: Element, tab: string, indent: string, newline
       }
     } else if (node.nodeType === NODETYPE.TEXT) {
       const value = trim(getTextContent(<Text><unknown>node));
-      
+
       if (value && value.length > 0) {
         result.push(indent + htmlEntities(value, false) + newline);
       }
diff --git a/packages/core/src/view/Graph.ts b/packages/core/src/view/Graph.ts
index bfa6f9d4d..758d006cf 100644
--- a/packages/core/src/view/Graph.ts
+++ b/packages/core/src/view/Graph.ts
@@ -25,7 +25,7 @@ import { getCurrentStyle, hasScrollbars, parseCssNumber } from '../util/styleUti
 import Cell from './cell/Cell';
 import GraphDataModel from './GraphDataModel';
 import Stylesheet from './style/Stylesheet';
-import { PAGE_FORMAT_A4_PORTRAIT } from '../util/constants';
+import { PAGE_FORMAT_A4_PORTRAIT } from '../util/Constants';
 
 import ChildChange from './undoable_changes/ChildChange';
 import GeometryChange from './undoable_changes/GeometryChange';
diff --git a/packages/core/src/view/GraphView.ts b/packages/core/src/view/GraphView.ts
index c1fa690d5..e27d6a757 100644
--- a/packages/core/src/view/GraphView.ts
+++ b/packages/core/src/view/GraphView.ts
@@ -11,7 +11,7 @@ import Dictionary from '../util/Dictionary';
 import EventSource from './event/EventSource';
 import EventObject from './event/EventObject';
 import RectangleShape from './geometry/node/RectangleShape';
-import { ALIGN } from '../util/constants';
+import { ALIGN } from '../util/Constants';
 import Client from '../Client';
 import InternalEvent from './event/InternalEvent';
 import {
@@ -38,7 +38,7 @@ import Shape from './geometry/Shape';
 import Geometry from './geometry/Geometry';
 import ConnectionConstraint from './other/ConnectionConstraint';
 import PopupMenuHandler from './handler/PopupMenuHandler';
-import { getClientX, getClientY, getSource, isConsumed } from '../util/eventUtils';
+import { getClientX, getClientY, getSource, isConsumed } from '../util/EventUtils';
 import { clone } from '../util/cloneUtils';
 import CellArray from './cell/CellArray';
 import type { Graph } from './Graph';
diff --git a/packages/core/src/view/canvas/AbstractCanvas2D.ts b/packages/core/src/view/canvas/AbstractCanvas2D.ts
index 0e0d19f66..42888326c 100644
--- a/packages/core/src/view/canvas/AbstractCanvas2D.ts
+++ b/packages/core/src/view/canvas/AbstractCanvas2D.ts
@@ -14,7 +14,7 @@ import {
   SHADOW_OFFSET_X,
   SHADOW_OFFSET_Y,
   SHADOW_OPACITY,
-} from '../../util/constants';
+} from '../../util/Constants';
 import UrlConverter from '../../util/UrlConverter';
 import Point from '../geometry/Point';
 import { clone } from '../../util/cloneUtils';
diff --git a/packages/core/src/view/canvas/SvgCanvas2D.ts b/packages/core/src/view/canvas/SvgCanvas2D.ts
index fad4b4e98..d1dd43ee9 100644
--- a/packages/core/src/view/canvas/SvgCanvas2D.ts
+++ b/packages/core/src/view/canvas/SvgCanvas2D.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 
-import { isNotNullish } from '../../util/utils';
+import { isNotNullish } from '../../util/Utils';
 import { mod } from '../../util/mathUtils';
 import { getAlignmentAsPoint } from '../../util/styleUtils';
 import Client from '../../Client';
@@ -22,12 +22,12 @@ import {
   NS_XLINK,
   SHADOWCOLOR,
   WORD_WRAP,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Rectangle from '../geometry/Rectangle';
 import AbstractCanvas2D from './AbstractCanvas2D';
 import { getXml } from '../../util/xmlUtils';
 import { isNode, write } from '../../util/domUtils';
-import { htmlEntities, trim } from '../../util/stringUtils';
+import { htmlEntities, trim } from '../../util/StringUtils';
 import {
   AlignValue,
   ColorValue,
diff --git a/packages/core/src/view/canvas/XmlCanvas2D.ts b/packages/core/src/view/canvas/XmlCanvas2D.ts
index 6d5c5028a..7f925ec59 100644
--- a/packages/core/src/view/canvas/XmlCanvas2D.ts
+++ b/packages/core/src/view/canvas/XmlCanvas2D.ts
@@ -13,7 +13,7 @@ import {
   SHADOW_OFFSET_X,
   SHADOW_OFFSET_Y,
   SHADOW_OPACITY,
-} from '../../util/constants';
+} from '../../util/Constants';
 import { getOuterHtml, isNode } from '../../util/domUtils';
 import { DirectionValue, TextDirectionValue } from '../../types';
 
diff --git a/packages/core/src/view/cell/Cell.ts b/packages/core/src/view/cell/Cell.ts
index aadf057be..feb02427d 100644
--- a/packages/core/src/view/cell/Cell.ts
+++ b/packages/core/src/view/cell/Cell.ts
@@ -5,17 +5,17 @@
  * Type definitions from the typed-mxgraph project
  */
 
-import { NODETYPE } from '../../util/constants';
+import { NODETYPE } from '../../util/Constants';
 import Geometry from '../geometry/Geometry';
 import CellOverlay from './CellOverlay';
 import { clone } from '../../util/cloneUtils';
 import Point from '../geometry/Point';
 import CellPath from './CellPath';
 import CellArray from './CellArray';
-import { isNotNullish } from '../../util/utils';
+import { isNotNullish } from '../../util/Utils';
 import ObjectCodec from '../../serialization/ObjectCodec';
 import CodecRegistry from '../../serialization/CodecRegistry';
-import { removeWhitespace } from '../../util/stringUtils';
+import { removeWhitespace } from '../../util/StringUtils';
 import { importNode } from '../../util/domUtils';
 import Codec from '../../serialization/Codec';
 
diff --git a/packages/core/src/view/cell/CellHighlight.ts b/packages/core/src/view/cell/CellHighlight.ts
index d86421075..a98fbde7d 100644
--- a/packages/core/src/view/cell/CellHighlight.ts
+++ b/packages/core/src/view/cell/CellHighlight.ts
@@ -9,7 +9,7 @@ import {
   DIALECT,
   HIGHLIGHT_OPACITY,
   HIGHLIGHT_STROKEWIDTH,
-} from '../../util/constants';
+} from '../../util/Constants';
 import InternalEvent from '../event/InternalEvent';
 import Rectangle from '../geometry/Rectangle';
 import CellState from './CellState';
diff --git a/packages/core/src/view/cell/CellMarker.ts b/packages/core/src/view/cell/CellMarker.ts
index a9958ae39..9e09f00a0 100644
--- a/packages/core/src/view/cell/CellMarker.ts
+++ b/packages/core/src/view/cell/CellMarker.ts
@@ -12,7 +12,7 @@ import {
   MAX_HOTSPOT_SIZE,
   MIN_HOTSPOT_SIZE,
   NONE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import CellHighlight from './CellHighlight';
 import EventObject from '../event/EventObject';
 import InternalEvent from '../event/InternalEvent';
diff --git a/packages/core/src/view/cell/CellRenderer.ts b/packages/core/src/view/cell/CellRenderer.ts
index c240e1657..7735bbd07 100644
--- a/packages/core/src/view/cell/CellRenderer.ts
+++ b/packages/core/src/view/cell/CellRenderer.ts
@@ -29,14 +29,14 @@ import {
   DIALECT,
   NONE,
   SHAPE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import {
   getRotatedPoint,
   mod,
   toRadians,
 } from '../../util/mathUtils';
 import { convertPoint } from '../../util/styleUtils';
-import { 
+import {
   equalEntries,
   equalPoints,
 } from '../../util/arrayUtils';
@@ -52,7 +52,7 @@ import Shape from '../geometry/Shape';
 import CellState from './CellState';
 import Cell from './Cell';
 import CellOverlay from './CellOverlay';
-import { getClientX, getClientY, getSource } from '../../util/eventUtils';
+import { getClientX, getClientY, getSource } from '../../util/EventUtils';
 import { isNode } from '../../util/domUtils';
 import { CellStateStyles } from '../../types';
 import CellArray from './CellArray';
diff --git a/packages/core/src/view/cell/CellState.ts b/packages/core/src/view/cell/CellState.ts
index 6f646d68c..0ac857275 100644
--- a/packages/core/src/view/cell/CellState.ts
+++ b/packages/core/src/view/cell/CellState.ts
@@ -12,7 +12,7 @@ import GraphView from '../../view/GraphView';
 import Shape from '../geometry/Shape';
 import TextShape from '../geometry/node/TextShape';
 import Dictionary from '../../util/Dictionary';
-import { ALIGN, NONE } from '../../util/constants';
+import { ALIGN, NONE } from '../../util/Constants';
 import { CellStateStyles } from '../../types';
 import RectangleShape from '../geometry/node/RectangleShape';
 import CellOverlay from './CellOverlay';
diff --git a/packages/core/src/view/cell/VertexHandle.ts b/packages/core/src/view/cell/VertexHandle.ts
index b722b1d27..8725e1ba4 100644
--- a/packages/core/src/view/cell/VertexHandle.ts
+++ b/packages/core/src/view/cell/VertexHandle.ts
@@ -15,7 +15,7 @@ import {
   HANDLE_FILLCOLOR,
   HANDLE_SIZE,
   HANDLE_STROKECOLOR,
-} from '../../util/constants';
+} from '../../util/Constants';
 import InternalEvent from '../event/InternalEvent';
 import Shape from '../geometry/Shape';
 import InternalMouseEvent from '../event/InternalMouseEvent';
diff --git a/packages/core/src/view/event/InternalEvent.ts b/packages/core/src/view/event/InternalEvent.ts
index e8a0bdbaf..ec2196394 100644
--- a/packages/core/src/view/event/InternalEvent.ts
+++ b/packages/core/src/view/event/InternalEvent.ts
@@ -6,7 +6,7 @@
  */
 import InternalMouseEvent from './InternalMouseEvent';
 import Client from '../../Client';
-import { isConsumed, isMouseEvent } from '../../util/eventUtils';
+import { isConsumed, isMouseEvent } from '../../util/EventUtils';
 import CellState from '../cell/CellState';
 import {
   EventCache,
diff --git a/packages/core/src/view/event/InternalMouseEvent.ts b/packages/core/src/view/event/InternalMouseEvent.ts
index b6ed39205..682dc0fff 100644
--- a/packages/core/src/view/event/InternalMouseEvent.ts
+++ b/packages/core/src/view/event/InternalMouseEvent.ts
@@ -10,7 +10,7 @@ import {
   getSource,
   isMouseEvent,
   isPopupTrigger,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import { isAncestorNode } from '../../util/domUtils';
 import CellState from '../cell/CellState';
 import Shape from '../geometry/Shape';
diff --git a/packages/core/src/view/geometry/ActorShape.ts b/packages/core/src/view/geometry/ActorShape.ts
index f484879c8..2c0a0f3b2 100644
--- a/packages/core/src/view/geometry/ActorShape.ts
+++ b/packages/core/src/view/geometry/ActorShape.ts
@@ -8,14 +8,14 @@ import Rectangle from './Rectangle';
 import Shape from './Shape';
 import SvgCanvas2D from '../canvas/SvgCanvas2D';
 import { ColorValue } from '../../types';
-import { NONE } from '../../util/constants';
+import { NONE } from '../../util/Constants';
 
 /**
  * Extends {@link Shape} to implement an actor shape. If a custom shape with one
  * filled area is needed, then this shape's {@link redrawPath} method should be overridden.
  *
- * This shape is registered under {@link mxConstants.SHAPE_ACTOR} in {@link cellRenderer}.
- * 
+ * This shape is registered under {@link Constants.SHAPE_ACTOR} in {@link cellRenderer}.
+ *
  * ```javascript
  * function SampleShape() { }
  *
diff --git a/packages/core/src/view/geometry/Shape.ts b/packages/core/src/view/geometry/Shape.ts
index 073e334d2..60b8238e4 100644
--- a/packages/core/src/view/geometry/Shape.ts
+++ b/packages/core/src/view/geometry/Shape.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import Rectangle from './Rectangle';
-import { isNotNullish } from '../../util/utils';
+import { isNotNullish } from '../../util/Utils';
 import {
   getBoundingBox,
   getDirectedBounds,
@@ -18,7 +18,7 @@ import {
   RECTANGLE_ROUNDING_FACTOR,
   SHADOW_OFFSET_X,
   SHADOW_OFFSET_Y,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Point from './Point';
 import AbstractCanvas2D from '../canvas/AbstractCanvas2D';
 import SvgCanvas2D from '../canvas/SvgCanvas2D';
diff --git a/packages/core/src/view/geometry/edge/ArrowConnectorShape.ts b/packages/core/src/view/geometry/edge/ArrowConnectorShape.ts
index 702798c0e..d93532709 100644
--- a/packages/core/src/view/geometry/edge/ArrowConnectorShape.ts
+++ b/packages/core/src/view/geometry/edge/ArrowConnectorShape.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import Shape from '../Shape';
-import { ARROW_SIZE, ARROW_SPACING, ARROW_WIDTH, NONE } from '../../../util/constants';
+import { ARROW_SIZE, ARROW_SPACING, ARROW_WIDTH, NONE } from '../../../util/Constants';
 import { relativeCcw } from '../../../util/mathUtils';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 import Point from '../Point';
diff --git a/packages/core/src/view/geometry/edge/ArrowShape.ts b/packages/core/src/view/geometry/edge/ArrowShape.ts
index e723a4f3a..1be1dc85b 100644
--- a/packages/core/src/view/geometry/edge/ArrowShape.ts
+++ b/packages/core/src/view/geometry/edge/ArrowShape.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import Shape from '../Shape';
-import { ARROW_SIZE, ARROW_SPACING, ARROW_WIDTH } from '../../../util/constants';
+import { ARROW_SIZE, ARROW_SPACING, ARROW_WIDTH } from '../../../util/Constants';
 import Rectangle from '../Rectangle';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 import Point from '../Point';
diff --git a/packages/core/src/view/geometry/edge/ConnectorShape.ts b/packages/core/src/view/geometry/edge/ConnectorShape.ts
index 5fbf9d223..d34bbd357 100644
--- a/packages/core/src/view/geometry/edge/ConnectorShape.ts
+++ b/packages/core/src/view/geometry/edge/ConnectorShape.ts
@@ -4,7 +4,7 @@
  * Updated to ES9 syntax by David Morrissey 2021
  * Type definitions from the typed-mxgraph project
  */
-import { DEFAULT_MARKERSIZE, NONE } from '../../../util/constants';
+import { DEFAULT_MARKERSIZE, NONE } from '../../../util/Constants';
 import PolylineShape from './PolylineShape';
 import MarkerShape from './MarkerShape';
 import Point from '../Point';
diff --git a/packages/core/src/view/geometry/edge/MarkerShape.ts b/packages/core/src/view/geometry/edge/MarkerShape.ts
index 596746812..a9fc77edd 100644
--- a/packages/core/src/view/geometry/edge/MarkerShape.ts
+++ b/packages/core/src/view/geometry/edge/MarkerShape.ts
@@ -6,7 +6,7 @@
  */
 import { ArrowType } from '../../../types';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
-import { ARROW } from '../../../util/constants';
+import { ARROW } from '../../../util/Constants';
 import Point from '../Point';
 import Shape from '../Shape';
 
diff --git a/packages/core/src/view/geometry/edge/PolylineShape.ts b/packages/core/src/view/geometry/edge/PolylineShape.ts
index 4c5e9471f..9d5f674a0 100644
--- a/packages/core/src/view/geometry/edge/PolylineShape.ts
+++ b/packages/core/src/view/geometry/edge/PolylineShape.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import Shape from '../Shape';
-import { LINE_ARCSIZE } from '../../../util/constants';
+import { LINE_ARCSIZE } from '../../../util/Constants';
 import Point from '../Point';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 import { ColorValue } from '../../../types';
diff --git a/packages/core/src/view/geometry/node/CylinderShape.ts b/packages/core/src/view/geometry/node/CylinderShape.ts
index 3d33997b3..8b47e691b 100644
--- a/packages/core/src/view/geometry/node/CylinderShape.ts
+++ b/packages/core/src/view/geometry/node/CylinderShape.ts
@@ -7,7 +7,7 @@
 import Shape from '../Shape';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 import Rectangle from '../Rectangle';
-import { NONE } from '../../../util/constants';
+import { NONE } from '../../../util/Constants';
 
 /**
  * Extends {@link Shape} to implement an cylinder shape. If a custom shape with one filled area and an overlay path is
diff --git a/packages/core/src/view/geometry/node/HexagonShape.ts b/packages/core/src/view/geometry/node/HexagonShape.ts
index c7f99723f..8a692824a 100644
--- a/packages/core/src/view/geometry/node/HexagonShape.ts
+++ b/packages/core/src/view/geometry/node/HexagonShape.ts
@@ -6,7 +6,7 @@
  */
 import ActorShape from '../ActorShape';
 import Point from '../Point';
-import { LINE_ARCSIZE } from '../../../util/constants';
+import { LINE_ARCSIZE } from '../../../util/Constants';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 
 /**
diff --git a/packages/core/src/view/geometry/node/ImageShape.ts b/packages/core/src/view/geometry/node/ImageShape.ts
index 824a9e181..d24998e36 100644
--- a/packages/core/src/view/geometry/node/ImageShape.ts
+++ b/packages/core/src/view/geometry/node/ImageShape.ts
@@ -10,7 +10,7 @@ import Rectangle from '../Rectangle';
 import CellState from '../../cell/CellState';
 import AbstractCanvas2D from '../../canvas/SvgCanvas2D';
 import CellOverlay from '../../cell/CellOverlay';
-import { NONE } from '../../../util/constants';
+import { NONE } from '../../../util/Constants';
 import { ColorValue } from '../../../types';
 
 /**
diff --git a/packages/core/src/view/geometry/node/LabelShape.ts b/packages/core/src/view/geometry/node/LabelShape.ts
index eabbbbf60..79c930fc2 100644
--- a/packages/core/src/view/geometry/node/LabelShape.ts
+++ b/packages/core/src/view/geometry/node/LabelShape.ts
@@ -9,7 +9,7 @@ import {
   ALIGN,
   DEFAULT_IMAGESIZE,
   NONE,
-} from '../../../util/constants';
+} from '../../../util/Constants';
 import RectangleShape from './RectangleShape';
 import { ColorValue } from '../../../types';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
diff --git a/packages/core/src/view/geometry/node/RectangleShape.ts b/packages/core/src/view/geometry/node/RectangleShape.ts
index b1d90668c..d3be55cdb 100644
--- a/packages/core/src/view/geometry/node/RectangleShape.ts
+++ b/packages/core/src/view/geometry/node/RectangleShape.ts
@@ -9,7 +9,7 @@ import {
   LINE_ARCSIZE,
   NONE,
   RECTANGLE_ROUNDING_FACTOR,
-} from '../../../util/constants';
+} from '../../../util/Constants';
 import Shape from '../Shape';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 import Rectangle from '../Rectangle';
diff --git a/packages/core/src/view/geometry/node/RhombusShape.ts b/packages/core/src/view/geometry/node/RhombusShape.ts
index a29cae303..fe46e7f66 100644
--- a/packages/core/src/view/geometry/node/RhombusShape.ts
+++ b/packages/core/src/view/geometry/node/RhombusShape.ts
@@ -6,7 +6,7 @@
  */
 import Shape from '../Shape';
 import Point from '../Point';
-import { LINE_ARCSIZE } from '../../../util/constants';
+import { LINE_ARCSIZE } from '../../../util/Constants';
 import Rectangle from '../Rectangle';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 
diff --git a/packages/core/src/view/geometry/node/StencilShape.ts b/packages/core/src/view/geometry/node/StencilShape.ts
index 09df36bcc..d29ea0333 100644
--- a/packages/core/src/view/geometry/node/StencilShape.ts
+++ b/packages/core/src/view/geometry/node/StencilShape.ts
@@ -9,7 +9,7 @@ import ConnectionConstraint from '../../other/ConnectionConstraint';
 import Rectangle from '../Rectangle';
 import Shape from '../Shape';
 import Translations from '../../../util/Translations';
-import { getValue, isNotNullish } from '../../../util/utils';
+import { getValue, isNotNullish } from '../../../util/Utils';
 import {
   ALIGN,
   DIRECTION,
@@ -17,13 +17,13 @@ import {
   NONE,
   RECTANGLE_ROUNDING_FACTOR,
   TEXT_DIRECTION,
-} from '../../../util/constants';
+} from '../../../util/Constants';
 import StencilShapeRegistry from './StencilShapeRegistry';
 import { getChildNodes, getTextContent } from '../../../util/domUtils';
 import Point from '../Point';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 import { AlignValue, ColorValue, VAlignValue } from '../../../types';
-import { getNumber } from '../../../util/stringUtils';
+import { getNumber } from '../../../util/StringUtils';
 
 /**
  * Implements a generic shape which is based on a XML node as a description.
diff --git a/packages/core/src/view/geometry/node/SwimlaneShape.ts b/packages/core/src/view/geometry/node/SwimlaneShape.ts
index b5e9ffdc6..955be7aa4 100644
--- a/packages/core/src/view/geometry/node/SwimlaneShape.ts
+++ b/packages/core/src/view/geometry/node/SwimlaneShape.ts
@@ -12,7 +12,7 @@ import {
   LINE_ARCSIZE,
   NONE,
   RECTANGLE_ROUNDING_FACTOR,
-} from '../../../util/constants';
+} from '../../../util/Constants';
 import { ColorValue } from '../../../types';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 
diff --git a/packages/core/src/view/geometry/node/TextShape.ts b/packages/core/src/view/geometry/node/TextShape.ts
index d1f3f4606..e82d0643e 100644
--- a/packages/core/src/view/geometry/node/TextShape.ts
+++ b/packages/core/src/view/geometry/node/TextShape.ts
@@ -19,7 +19,7 @@ import {
   TEXT_DIRECTION,
   WORD_WRAP,
   LINE_HEIGHT,
-} from '../../../util/constants';
+} from '../../../util/Constants';
 import { getBoundingBox } from '../../../util/mathUtils';
 import { getAlignmentAsPoint } from '../../../util/styleUtils';
 import Point from '../Point';
@@ -31,7 +31,7 @@ import {
   htmlEntities,
   replaceTrailingNewlines,
   trim,
-} from '../../../util/stringUtils';
+} from '../../../util/StringUtils';
 import { isNode } from '../../../util/domUtils';
 import {
   AlignValue,
diff --git a/packages/core/src/view/geometry/node/TriangleShape.ts b/packages/core/src/view/geometry/node/TriangleShape.ts
index f1383d0a7..e6d74df48 100644
--- a/packages/core/src/view/geometry/node/TriangleShape.ts
+++ b/packages/core/src/view/geometry/node/TriangleShape.ts
@@ -7,7 +7,7 @@
 
 import Point from '../Point';
 import ActorShape from '../ActorShape';
-import { LINE_ARCSIZE } from '../../../util/constants';
+import { LINE_ARCSIZE } from '../../../util/Constants';
 import AbstractCanvas2D from '../../canvas/AbstractCanvas2D';
 
 /**
diff --git a/packages/core/src/view/handler/CellEditorHandler.ts b/packages/core/src/view/handler/CellEditorHandler.ts
index f36f857bf..2a0d86baa 100644
--- a/packages/core/src/view/handler/CellEditorHandler.ts
+++ b/packages/core/src/view/handler/CellEditorHandler.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 
-import { getValue } from '../../util/utils';
+import { getValue } from '../../util/Utils';
 import {
   getAlignmentAsPoint,
   setPrefixedStyle,
@@ -24,21 +24,21 @@ import {
   LINE_HEIGHT,
   NONE,
   WORD_WRAP,
-} from '../../util/constants';
+} from '../../util/Constants';
 import TextShape from '../geometry/node/TextShape';
 import Cell from '../cell/Cell';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 import CellState from '../cell/CellState';
 import Shape from '../geometry/Shape';
 import { clearSelection, extractTextWithWhitespace, isNode } from '../../util/domUtils';
-import { getStringValue, htmlEntities, replaceTrailingNewlines } from '../../util/stringUtils';
+import { getStringValue, htmlEntities, replaceTrailingNewlines } from '../../util/StringUtils';
 import {
   getSource,
   isConsumed,
   isControlDown,
   isMetaDown,
   isShiftDown,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import EventSource from '../event/EventSource';
 
 import type { Graph } from '../Graph';
diff --git a/packages/core/src/view/handler/ConnectionHandler.ts b/packages/core/src/view/handler/ConnectionHandler.ts
index e8d870d36..50f1674fd 100644
--- a/packages/core/src/view/handler/ConnectionHandler.ts
+++ b/packages/core/src/view/handler/ConnectionHandler.ts
@@ -18,7 +18,7 @@ import {
   OUTLINE_HIGHLIGHT_STROKEWIDTH,
   TOOLTIP_VERTICAL_OFFSET,
   VALID_COLOR,
-} from '../../util/constants';
+} from '../../util/Constants';
 import { getRotatedPoint, toRadians } from '../../util/mathUtils';
 import { convertPoint, getOffset } from '../../util/styleUtils';
 import InternalMouseEvent from '../event/InternalMouseEvent';
@@ -35,7 +35,7 @@ import {
   isAltDown,
   isConsumed,
   isShiftDown,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import Image from '../image/ImageBox';
 import CellState from '../cell/CellState';
 import { Graph } from '../Graph';
diff --git a/packages/core/src/view/handler/ConstraintHandler.ts b/packages/core/src/view/handler/ConstraintHandler.ts
index 97a8207d3..db93efcfc 100644
--- a/packages/core/src/view/handler/ConstraintHandler.ts
+++ b/packages/core/src/view/handler/ConstraintHandler.ts
@@ -12,13 +12,13 @@ import {
   HIGHLIGHT_OPACITY,
   HIGHLIGHT_SIZE,
   HIGHLIGHT_STROKEWIDTH,
-} from '../../util/constants';
+} from '../../util/Constants';
 import InternalEvent from '../event/InternalEvent';
 import { intersects } from '../../util/mathUtils';
 import Rectangle from '../geometry/Rectangle';
 import ImageShape from '../geometry/node/ImageShape';
 import RectangleShape from '../geometry/node/RectangleShape';
-import { isShiftDown } from '../../util/eventUtils';
+import { isShiftDown } from '../../util/EventUtils';
 import { Graph } from '../Graph';
 import CellState from '../cell/CellState';
 import InternalMouseEvent from '../event/InternalMouseEvent';
diff --git a/packages/core/src/view/handler/EdgeHandler.ts b/packages/core/src/view/handler/EdgeHandler.ts
index b4663f786..4d694d934 100644
--- a/packages/core/src/view/handler/EdgeHandler.ts
+++ b/packages/core/src/view/handler/EdgeHandler.ts
@@ -24,7 +24,7 @@ import {
   NONE,
   OUTLINE_HIGHLIGHT_COLOR,
   OUTLINE_HIGHLIGHT_STROKEWIDTH,
-} from '../../util/constants';
+} from '../../util/Constants';
 import {
   contains,
   findNearestSegment,
@@ -50,7 +50,7 @@ import {
   isAltDown,
   isMouseEvent,
   isShiftDown,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import { Graph } from '../Graph';
 import CellState from '../cell/CellState';
 import Shape from '../geometry/Shape';
diff --git a/packages/core/src/view/handler/EdgeSegmentHandler.ts b/packages/core/src/view/handler/EdgeSegmentHandler.ts
index 979db4e17..7be6be25b 100644
--- a/packages/core/src/view/handler/EdgeSegmentHandler.ts
+++ b/packages/core/src/view/handler/EdgeSegmentHandler.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import Point from '../geometry/Point';
-import { CURSOR } from '../../util/constants';
+import { CURSOR } from '../../util/Constants';
 import Rectangle from '../geometry/Rectangle';
 import { contains } from '../../util/mathUtils';
 import { setOpacity } from '../../util/styleUtils';
diff --git a/packages/core/src/view/handler/ElbowEdgeHandler.ts b/packages/core/src/view/handler/ElbowEdgeHandler.ts
index 402bba0ec..fbd5a28b0 100644
--- a/packages/core/src/view/handler/ElbowEdgeHandler.ts
+++ b/packages/core/src/view/handler/ElbowEdgeHandler.ts
@@ -10,14 +10,14 @@ import {
   EDGESTYLE,
   ELBOW,
   HANDLE_SIZE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import InternalEvent from '../event/InternalEvent';
 import Point from '../geometry/Point';
 import Translations from '../../util/Translations';
 import Rectangle from '../geometry/Rectangle';
 import { intersects } from '../../util/mathUtils';
 import Client from '../../Client';
-import { isConsumed } from '../../util/eventUtils';
+import { isConsumed } from '../../util/EventUtils';
 import CellState from '../cell/CellState';
 
 /**
diff --git a/packages/core/src/view/handler/KeyHandler.ts b/packages/core/src/view/handler/KeyHandler.ts
index 97491a64b..3e112835d 100644
--- a/packages/core/src/view/handler/KeyHandler.ts
+++ b/packages/core/src/view/handler/KeyHandler.ts
@@ -8,7 +8,7 @@
 import { Graph } from '../Graph';
 import InternalEvent from '../event/InternalEvent';
 import { isAncestorNode } from '../../util/domUtils';
-import { getSource, isAltDown, isConsumed, isControlDown as _isControlDown, isShiftDown } from '../../util/eventUtils';
+import { getSource, isAltDown, isConsumed, isControlDown as _isControlDown, isShiftDown } from '../../util/EventUtils';
 import CellEditorHandler from './CellEditorHandler';
 
 /**
diff --git a/packages/core/src/view/handler/PanningHandler.ts b/packages/core/src/view/handler/PanningHandler.ts
index 840d66fa1..64a2d8713 100644
--- a/packages/core/src/view/handler/PanningHandler.ts
+++ b/packages/core/src/view/handler/PanningHandler.ts
@@ -15,7 +15,7 @@ import {
   isMultiTouchEvent,
   isPopupTrigger,
   isShiftDown,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import PanningManager from '../other/PanningManager';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 
diff --git a/packages/core/src/view/handler/PopupMenuHandler.ts b/packages/core/src/view/handler/PopupMenuHandler.ts
index 63a8a87d3..5be47a1cc 100644
--- a/packages/core/src/view/handler/PopupMenuHandler.ts
+++ b/packages/core/src/view/handler/PopupMenuHandler.ts
@@ -7,7 +7,7 @@
 import MaxPopupMenu from '../../gui/MaxPopupMenu';
 import InternalEvent from '../event/InternalEvent';
 import { getScrollOrigin } from '../../util/styleUtils';
-import { getMainEvent, isMultiTouchEvent } from '../../util/eventUtils';
+import { getMainEvent, isMultiTouchEvent } from '../../util/EventUtils';
 import { Graph } from '../Graph';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 import { GraphPlugin } from '../../types';
diff --git a/packages/core/src/view/handler/RubberBandHandler.ts b/packages/core/src/view/handler/RubberBandHandler.ts
index 47bd9c124..a321ae4bf 100644
--- a/packages/core/src/view/handler/RubberBandHandler.ts
+++ b/packages/core/src/view/handler/RubberBandHandler.ts
@@ -15,7 +15,7 @@ import Point from '../geometry/Point';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 import Client from '../../Client';
 import Rectangle from '../geometry/Rectangle';
-import { isAltDown, isMultiTouchEvent } from '../../util/eventUtils';
+import { isAltDown, isMultiTouchEvent } from '../../util/EventUtils';
 import { clearSelection } from '../../util/domUtils';
 import { Graph } from '../Graph';
 import { GraphPlugin } from '../../types';
diff --git a/packages/core/src/view/handler/SelectionHandler.ts b/packages/core/src/view/handler/SelectionHandler.ts
index 5c06b164e..ea9ee6310 100644
--- a/packages/core/src/view/handler/SelectionHandler.ts
+++ b/packages/core/src/view/handler/SelectionHandler.ts
@@ -24,11 +24,11 @@ import {
   INVALID_CONNECT_TARGET_COLOR,
   NONE,
   VALID_COLOR,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Dictionary from '../../util/Dictionary';
 import CellHighlight from '../cell/CellHighlight';
 import Rectangle from '../geometry/Rectangle';
-import { getClientX, getClientY, isAltDown, isMultiTouchEvent } from '../../util/eventUtils';
+import { getClientX, getClientY, isAltDown, isMultiTouchEvent } from '../../util/EventUtils';
 import { Graph } from '../Graph';
 import Guide from '../other/Guide';
 import Shape from '../geometry/Shape';
diff --git a/packages/core/src/view/handler/TooltipHandler.ts b/packages/core/src/view/handler/TooltipHandler.ts
index 3f79507db..8d58805f3 100644
--- a/packages/core/src/view/handler/TooltipHandler.ts
+++ b/packages/core/src/view/handler/TooltipHandler.ts
@@ -6,8 +6,8 @@
  */
 import InternalEvent from '../event/InternalEvent';
 import { fit, getScrollOrigin } from '../../util/styleUtils';
-import { TOOLTIP_VERTICAL_OFFSET } from '../../util/constants';
-import { getSource, isMouseEvent } from '../../util/eventUtils';
+import { TOOLTIP_VERTICAL_OFFSET } from '../../util/Constants';
+import { getSource, isMouseEvent } from '../../util/EventUtils';
 import { isNode } from '../../util/domUtils';
 import { Graph } from '../Graph';
 import CellState from '../cell/CellState';
diff --git a/packages/core/src/view/handler/VertexHandler.ts b/packages/core/src/view/handler/VertexHandler.ts
index 8df690959..ba7760950 100644
--- a/packages/core/src/view/handler/VertexHandler.ts
+++ b/packages/core/src/view/handler/VertexHandler.ts
@@ -17,7 +17,7 @@ import {
   VERTEX_SELECTION_COLOR,
   VERTEX_SELECTION_DASHED,
   VERTEX_SELECTION_STROKEWIDTH,
-} from '../../util/constants';
+} from '../../util/Constants';
 import InternalEvent from '../event/InternalEvent';
 import RectangleShape from '../geometry/node/RectangleShape';
 import ImageShape from '../geometry/node/ImageShape';
@@ -25,7 +25,7 @@ import EllipseShape from '../geometry/node/EllipseShape';
 import Point from '../geometry/Point';
 import { getRotatedPoint, intersects, mod, toRadians } from '../../util/mathUtils';
 import Client from '../../Client';
-import { isMouseEvent, isShiftDown } from '../../util/eventUtils';
+import { isMouseEvent, isShiftDown } from '../../util/EventUtils';
 import { Graph } from '../Graph';
 import CellState from '../cell/CellState';
 import Image from '../image/ImageBox';
diff --git a/packages/core/src/view/layout/HierarchicalLayout.ts b/packages/core/src/view/layout/HierarchicalLayout.ts
index 6dd0f7464..6301a1bd6 100644
--- a/packages/core/src/view/layout/HierarchicalLayout.ts
+++ b/packages/core/src/view/layout/HierarchicalLayout.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import GraphLayout from './GraphLayout';
-import { DIRECTION } from '../../util/constants';
+import { DIRECTION } from '../../util/Constants';
 import HierarchicalEdgeStyle from './datatypes/HierarchicalEdgeStyle';
 import Dictionary from '../../util/Dictionary';
 import GraphHierarchyModel from './hierarchical/GraphHierarchyModel';
@@ -35,8 +35,8 @@ import GraphHierarchyNode from './datatypes/GraphHierarchyNode';
  */
 class HierarchicalLayout extends GraphLayout {
   constructor(
-    graph: Graph, 
-    orientation: DIRECTION=DIRECTION.NORTH, 
+    graph: Graph,
+    orientation: DIRECTION=DIRECTION.NORTH,
     deterministic: boolean=true
   ) {
     super(graph);
diff --git a/packages/core/src/view/layout/LayoutManager.ts b/packages/core/src/view/layout/LayoutManager.ts
index a750bfb95..f042a1ce7 100644
--- a/packages/core/src/view/layout/LayoutManager.ts
+++ b/packages/core/src/view/layout/LayoutManager.ts
@@ -17,7 +17,7 @@ import StyleChange from '../undoable_changes/StyleChange';
 import EventObject from '../event/EventObject';
 import Cell from '../cell/Cell';
 import Rectangle from '../geometry/Rectangle';
-import { getClientX, getClientY } from '../../util/eventUtils';
+import { getClientX, getClientY } from '../../util/EventUtils';
 import CellArray from '../cell/CellArray';
 import { Graph } from '../Graph';
 import GraphLayout from './GraphLayout';
diff --git a/packages/core/src/view/layout/StackLayout.ts b/packages/core/src/view/layout/StackLayout.ts
index c8cdcc455..f5940593a 100644
--- a/packages/core/src/view/layout/StackLayout.ts
+++ b/packages/core/src/view/layout/StackLayout.ts
@@ -6,9 +6,9 @@
  */
 import GraphLayout from './GraphLayout';
 import Rectangle from '../geometry/Rectangle';
-import { getValue } from '../../util/utils';
-import { getNumber } from '../../util/stringUtils';
-import { DEFAULT_STARTSIZE } from '../../util/constants';
+import { getValue } from '../../util/Utils';
+import { getNumber } from '../../util/StringUtils';
+import { DEFAULT_STARTSIZE } from '../../util/Constants';
 import { Graph } from '../Graph';
 import Cell from '../cell/Cell';
 import Geometry from '../geometry/Geometry';
diff --git a/packages/core/src/view/layout/SwimlaneLayout.ts b/packages/core/src/view/layout/SwimlaneLayout.ts
index b9430e25f..410cfc555 100644
--- a/packages/core/src/view/layout/SwimlaneLayout.ts
+++ b/packages/core/src/view/layout/SwimlaneLayout.ts
@@ -6,7 +6,7 @@
  */
 
 import GraphLayout from './GraphLayout';
-import { DIRECTION } from '../../util/constants';
+import { DIRECTION } from '../../util/Constants';
 import HierarchicalEdgeStyle from './datatypes/HierarchicalEdgeStyle';
 import Dictionary from '../../util/Dictionary';
 import Rectangle from '../geometry/Rectangle';
diff --git a/packages/core/src/view/layout/hierarchical/CoordinateAssignment.ts b/packages/core/src/view/layout/hierarchical/CoordinateAssignment.ts
index 717bc4329..c31480048 100644
--- a/packages/core/src/view/layout/hierarchical/CoordinateAssignment.ts
+++ b/packages/core/src/view/layout/hierarchical/CoordinateAssignment.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 import HierarchicalLayoutStage from './HierarchicalLayoutStage';
-import { DIRECTION } from '../../../util/constants';
+import { DIRECTION } from '../../../util/Constants';
 import MaxLog from '../../../gui/MaxLog';
 import WeightedCellSorter from '../util/WeightedCellSorter';
 import Dictionary from '../../../util/Dictionary';
diff --git a/packages/core/src/view/mixins/CellsMixin.ts b/packages/core/src/view/mixins/CellsMixin.ts
index f38d6b1fb..ed49acaac 100644
--- a/packages/core/src/view/mixins/CellsMixin.ts
+++ b/packages/core/src/view/mixins/CellsMixin.ts
@@ -1,6 +1,6 @@
 import Cell from '../cell/Cell';
 import CellArray from '../cell/CellArray';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import {
   contains,
   getBoundingBox,
@@ -21,14 +21,14 @@ import {
   DEFAULT_IMAGESIZE,
   DIRECTION,
   SHAPE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Geometry from '../geometry/Geometry';
 import EventObject from '../event/EventObject';
 import InternalEvent from '../event/InternalEvent';
 import Rectangle from '../geometry/Rectangle';
 import Dictionary from '../../util/Dictionary';
 import Point from '../geometry/Point';
-import { htmlEntities } from '../../util/stringUtils';
+import { htmlEntities } from '../../util/StringUtils';
 import CellState from '../cell/CellState';
 import { Graph } from '../Graph';
 
diff --git a/packages/core/src/view/mixins/ConnectionsMixin.ts b/packages/core/src/view/mixins/ConnectionsMixin.ts
index 081fb8996..1fb0ad6c1 100644
--- a/packages/core/src/view/mixins/ConnectionsMixin.ts
+++ b/packages/core/src/view/mixins/ConnectionsMixin.ts
@@ -3,8 +3,8 @@ import CellState from '../cell/CellState';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 import ConnectionConstraint from '../other/ConnectionConstraint';
 import Rectangle from '../geometry/Rectangle';
-import { DIRECTION } from '../../util/constants';
-import { mixInto } from '../../util/utils';
+import { DIRECTION } from '../../util/Constants';
+import { mixInto } from '../../util/Utils';
 import { getRotatedPoint, toRadians } from '../../util/mathUtils';
 import Cell from '../cell/Cell';
 import CellArray from '../cell/CellArray';
diff --git a/packages/core/src/view/mixins/DragDropMixin.ts b/packages/core/src/view/mixins/DragDropMixin.ts
index f04463afe..4cb9f4dc3 100644
--- a/packages/core/src/view/mixins/DragDropMixin.ts
+++ b/packages/core/src/view/mixins/DragDropMixin.ts
@@ -1,4 +1,4 @@
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import Cell from '../cell/Cell';
 import CellArray from '../cell/CellArray';
 import { Graph } from '../Graph';
diff --git a/packages/core/src/view/mixins/EdgeMixin.ts b/packages/core/src/view/mixins/EdgeMixin.ts
index 961dddb6b..90bcfa6ba 100644
--- a/packages/core/src/view/mixins/EdgeMixin.ts
+++ b/packages/core/src/view/mixins/EdgeMixin.ts
@@ -1,6 +1,6 @@
 import Cell from '../cell/Cell';
 import CellArray from '../cell/CellArray';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { removeDuplicates } from '../../util/arrayUtils';
 import { findNearestSegment } from '../../util/mathUtils';
 import Geometry from '../geometry/Geometry';
diff --git a/packages/core/src/view/mixins/EditingMixin.ts b/packages/core/src/view/mixins/EditingMixin.ts
index cf7180519..b364eb353 100644
--- a/packages/core/src/view/mixins/EditingMixin.ts
+++ b/packages/core/src/view/mixins/EditingMixin.ts
@@ -1,10 +1,10 @@
 import Cell from '../cell/Cell';
-import { isMultiTouchEvent } from '../../util/eventUtils';
+import { isMultiTouchEvent } from '../../util/EventUtils';
 import EventObject from '../event/EventObject';
 import InternalEvent from '../event/InternalEvent';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 import { Graph } from '../Graph';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import CellEditorHandler from '../handler/CellEditorHandler';
 
 declare module '../Graph' {
diff --git a/packages/core/src/view/mixins/EventsMixin.ts b/packages/core/src/view/mixins/EventsMixin.ts
index 39cb4c1a1..6478c7dd2 100644
--- a/packages/core/src/view/mixins/EventsMixin.ts
+++ b/packages/core/src/view/mixins/EventsMixin.ts
@@ -15,15 +15,15 @@ import {
   isPopupTrigger,
   isShiftDown,
   isTouchEvent,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import CellState from '../cell/CellState';
 import Cell from '../cell/Cell';
 import PanningHandler from '../handler/PanningHandler';
 import ConnectionHandler from '../handler/ConnectionHandler';
 import Point from '../geometry/Point';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { convertPoint } from '../../util/styleUtils';
-import { NONE } from '../../util/constants';
+import { NONE } from '../../util/Constants';
 import Client from '../../Client';
 import EventSource from '../event/EventSource';
 import CellEditorHandler from '../handler/CellEditorHandler';
diff --git a/packages/core/src/view/mixins/FoldingMixin.ts b/packages/core/src/view/mixins/FoldingMixin.ts
index 039b8436d..2a039aadc 100644
--- a/packages/core/src/view/mixins/FoldingMixin.ts
+++ b/packages/core/src/view/mixins/FoldingMixin.ts
@@ -6,7 +6,7 @@ import CellArray from '../cell/CellArray';
 import EventObject from '../event/EventObject';
 import InternalEvent from '../event/InternalEvent';
 import Geometry from '../geometry/Geometry';
-import { getValue, mixInto } from '../../util/utils';
+import { getValue, mixInto } from '../../util/Utils';
 import { toRadians } from '../../util/mathUtils';
 import Rectangle from '../geometry/Rectangle';
 import { Graph } from '../Graph';
diff --git a/packages/core/src/view/mixins/GroupingMixin.ts b/packages/core/src/view/mixins/GroupingMixin.ts
index ad7f1bceb..ebba05e6c 100644
--- a/packages/core/src/view/mixins/GroupingMixin.ts
+++ b/packages/core/src/view/mixins/GroupingMixin.ts
@@ -1,6 +1,6 @@
 import Cell from '../cell/Cell';
 import CellArray from '../cell/CellArray';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { sortCells } from '../../util/styleUtils';
 import Geometry from '../geometry/Geometry';
 import EventObject from '../event/EventObject';
diff --git a/packages/core/src/view/mixins/ImageMixin.ts b/packages/core/src/view/mixins/ImageMixin.ts
index dfcb18e19..24d9d1768 100644
--- a/packages/core/src/view/mixins/ImageMixin.ts
+++ b/packages/core/src/view/mixins/ImageMixin.ts
@@ -1,4 +1,4 @@
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { Graph } from '../Graph';
 import ImageBundle from '../image/ImageBundle';
 
diff --git a/packages/core/src/view/mixins/LabelMixin.ts b/packages/core/src/view/mixins/LabelMixin.ts
index 4220c8412..7c5035103 100644
--- a/packages/core/src/view/mixins/LabelMixin.ts
+++ b/packages/core/src/view/mixins/LabelMixin.ts
@@ -1,4 +1,4 @@
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import Cell from '../cell/Cell';
 import { Graph } from '../Graph';
 
diff --git a/packages/core/src/view/mixins/OrderMixin.ts b/packages/core/src/view/mixins/OrderMixin.ts
index e56f8004e..7fd397241 100644
--- a/packages/core/src/view/mixins/OrderMixin.ts
+++ b/packages/core/src/view/mixins/OrderMixin.ts
@@ -1,5 +1,5 @@
 import CellArray from '../cell/CellArray';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { sortCells } from '../../util/styleUtils';
 import EventObject from '../event/EventObject';
 import InternalEvent from '../event/InternalEvent';
diff --git a/packages/core/src/view/mixins/OverlaysMixin.ts b/packages/core/src/view/mixins/OverlaysMixin.ts
index ce00dbde8..3042d7474 100644
--- a/packages/core/src/view/mixins/OverlaysMixin.ts
+++ b/packages/core/src/view/mixins/OverlaysMixin.ts
@@ -5,7 +5,7 @@ import InternalEvent from '../event/InternalEvent';
 import Image from '../image/ImageBox';
 import InternalMouseEvent from '../event/InternalMouseEvent';
 import { Graph } from '../Graph';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 
 declare module '../Graph' {
   interface Graph {
diff --git a/packages/core/src/view/mixins/PageBreaksMixin.ts b/packages/core/src/view/mixins/PageBreaksMixin.ts
index 2240f9fbf..1e292b29f 100644
--- a/packages/core/src/view/mixins/PageBreaksMixin.ts
+++ b/packages/core/src/view/mixins/PageBreaksMixin.ts
@@ -2,7 +2,7 @@ import Rectangle from '../geometry/Rectangle';
 import Point from '../geometry/Point';
 import PolylineShape from '../geometry/edge/PolylineShape';
 import { Graph } from '../Graph';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 
 declare module '../Graph' {
   interface Graph {
diff --git a/packages/core/src/view/mixins/PanningMixin.ts b/packages/core/src/view/mixins/PanningMixin.ts
index b94c47788..37e628d35 100644
--- a/packages/core/src/view/mixins/PanningMixin.ts
+++ b/packages/core/src/view/mixins/PanningMixin.ts
@@ -1,4 +1,4 @@
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { hasScrollbars } from '../../util/styleUtils';
 import EventObject from '../event/EventObject';
 import InternalEvent from '../event/InternalEvent';
diff --git a/packages/core/src/view/mixins/PortsMixin.ts b/packages/core/src/view/mixins/PortsMixin.ts
index 916f8c065..6495cf67c 100644
--- a/packages/core/src/view/mixins/PortsMixin.ts
+++ b/packages/core/src/view/mixins/PortsMixin.ts
@@ -1,4 +1,4 @@
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import Cell from '../cell/Cell';
 import { Graph } from '../Graph';
 
diff --git a/packages/core/src/view/mixins/SelectionMixin.ts b/packages/core/src/view/mixins/SelectionMixin.ts
index 9f550e082..3e7c3c801 100644
--- a/packages/core/src/view/mixins/SelectionMixin.ts
+++ b/packages/core/src/view/mixins/SelectionMixin.ts
@@ -5,7 +5,7 @@ import Dictionary from '../../util/Dictionary';
 import RootChange from '../undoable_changes/RootChange';
 import ChildChange from '../undoable_changes/ChildChange';
 import { Graph } from '../Graph';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import GraphSelectionModel from '../GraphSelectionModel';
 
 declare module '../Graph' {
diff --git a/packages/core/src/view/mixins/SnapMixin.ts b/packages/core/src/view/mixins/SnapMixin.ts
index 797167ad7..2bb9d78fe 100644
--- a/packages/core/src/view/mixins/SnapMixin.ts
+++ b/packages/core/src/view/mixins/SnapMixin.ts
@@ -1,4 +1,4 @@
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import Point from '../geometry/Point';
 import Rectangle from '../geometry/Rectangle';
 import { Graph } from '../Graph';
diff --git a/packages/core/src/view/mixins/SwimlaneMixin.ts b/packages/core/src/view/mixins/SwimlaneMixin.ts
index 2eaa3062b..bc5d915e3 100644
--- a/packages/core/src/view/mixins/SwimlaneMixin.ts
+++ b/packages/core/src/view/mixins/SwimlaneMixin.ts
@@ -1,15 +1,15 @@
 import Cell from '../cell/Cell';
 import Rectangle from '../geometry/Rectangle';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { convertPoint } from '../../util/styleUtils';
 import { mod } from '../../util/mathUtils';
 import {
   DEFAULT_STARTSIZE,
   DIRECTION,
   SHAPE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import CellArray from '../cell/CellArray';
-import { getClientX, getClientY } from '../../util/eventUtils';
+import { getClientX, getClientY } from '../../util/EventUtils';
 import { Graph } from '../Graph';
 
 import { CellStateStyles, DirectionValue } from '../../types';
diff --git a/packages/core/src/view/mixins/TerminalMixin.ts b/packages/core/src/view/mixins/TerminalMixin.ts
index aabfebd3f..61fd5b22c 100644
--- a/packages/core/src/view/mixins/TerminalMixin.ts
+++ b/packages/core/src/view/mixins/TerminalMixin.ts
@@ -2,7 +2,7 @@ import CellArray from '../cell/CellArray';
 import Cell from '../cell/Cell';
 import Dictionary from '../../util/Dictionary';
 import { Graph } from '../Graph';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 
 declare module '../Graph' {
   interface Graph {
diff --git a/packages/core/src/view/mixins/TooltipMixin.ts b/packages/core/src/view/mixins/TooltipMixin.ts
index e78cd7bd6..dd74fc7c9 100644
--- a/packages/core/src/view/mixins/TooltipMixin.ts
+++ b/packages/core/src/view/mixins/TooltipMixin.ts
@@ -1,12 +1,12 @@
 import CellState from '../cell/CellState';
-import { htmlEntities } from '../../util/stringUtils';
+import { htmlEntities } from '../../util/StringUtils';
 import Translations from '../../util/Translations';
 import Shape from '../geometry/Shape';
 import Cell from '../cell/Cell';
 import { Graph } from '../Graph';
 import SelectionCellsHandler from '../handler/SelectionCellsHandler';
 import TooltipHandler from '../handler/TooltipHandler';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 
 declare module '../Graph' {
   interface Graph {
diff --git a/packages/core/src/view/mixins/ValidationMixin.ts b/packages/core/src/view/mixins/ValidationMixin.ts
index 990e514c6..664443eba 100644
--- a/packages/core/src/view/mixins/ValidationMixin.ts
+++ b/packages/core/src/view/mixins/ValidationMixin.ts
@@ -4,7 +4,7 @@ import { isNode } from '../../util/domUtils';
 import CellState from '../cell/CellState';
 import Multiplicity from '../other/Multiplicity';
 import { Graph } from '../Graph';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 
 declare module '../Graph' {
   interface Graph {
diff --git a/packages/core/src/view/mixins/VertexMixin.ts b/packages/core/src/view/mixins/VertexMixin.ts
index 58e862acf..58c3f702f 100644
--- a/packages/core/src/view/mixins/VertexMixin.ts
+++ b/packages/core/src/view/mixins/VertexMixin.ts
@@ -2,7 +2,7 @@ import Cell from '../cell/Cell';
 import Geometry from '../geometry/Geometry';
 import { Graph } from '../Graph';
 import CellArray from '../cell/CellArray';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 
 declare module '../Graph' {
   interface Graph {
diff --git a/packages/core/src/view/mixins/ZoomMixin.ts b/packages/core/src/view/mixins/ZoomMixin.ts
index ac4b8adbe..bebfd325b 100644
--- a/packages/core/src/view/mixins/ZoomMixin.ts
+++ b/packages/core/src/view/mixins/ZoomMixin.ts
@@ -1,5 +1,5 @@
 import Rectangle from '../geometry/Rectangle';
-import { mixInto } from '../../util/utils';
+import { mixInto } from '../../util/Utils';
 import { hasScrollbars } from '../../util/styleUtils';
 import { Graph } from '../Graph';
 
diff --git a/packages/core/src/view/other/DragSource.ts b/packages/core/src/view/other/DragSource.ts
index 30e910cf7..225d56019 100644
--- a/packages/core/src/view/other/DragSource.ts
+++ b/packages/core/src/view/other/DragSource.ts
@@ -15,7 +15,7 @@ import {
 import InternalEvent from '../event/InternalEvent';
 import Client from '../../Client';
 import Guide from './Guide';
-import { DROP_TARGET_COLOR } from '../../util/constants';
+import { DROP_TARGET_COLOR } from '../../util/Constants';
 import Point from '../geometry/Point';
 import {
   getClientX,
@@ -25,7 +25,7 @@ import {
   isMouseEvent,
   isPenEvent,
   isTouchEvent,
-} from '../../util/eventUtils';
+} from '../../util/EventUtils';
 import EventSource from '../event/EventSource';
 import EventObject from '../event/EventObject';
 import { Graph } from '../Graph';
diff --git a/packages/core/src/view/other/Guide.ts b/packages/core/src/view/other/Guide.ts
index 7d186adf0..b368dc892 100644
--- a/packages/core/src/view/other/Guide.ts
+++ b/packages/core/src/view/other/Guide.ts
@@ -5,7 +5,7 @@
  * Type definitions from the typed-mxgraph project
  */
 
-import { DIALECT, GUIDE_COLOR, GUIDE_STROKEWIDTH } from '../../util/constants';
+import { DIALECT, GUIDE_COLOR, GUIDE_STROKEWIDTH } from '../../util/Constants';
 import Point from '../geometry/Point';
 import PolylineShape from '../geometry/edge/PolylineShape';
 import CellState from '../cell/CellState';
diff --git a/packages/core/src/view/other/Outline.ts b/packages/core/src/view/other/Outline.ts
index e384569ed..bc26600e7 100644
--- a/packages/core/src/view/other/Outline.ts
+++ b/packages/core/src/view/other/Outline.ts
@@ -12,7 +12,7 @@ import {
   OUTLINE_HANDLE_FILLCOLOR,
   OUTLINE_HANDLE_STROKECOLOR,
   OUTLINE_STROKEWIDTH,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Point from '../geometry/Point';
 import Rectangle from '../geometry/Rectangle';
 import RectangleShape from '../geometry/node/RectangleShape';
@@ -21,7 +21,7 @@ import ImageShape from '../geometry/node/ImageShape';
 import InternalEvent from '../event/InternalEvent';
 import Image from '../image/ImageBox';
 import EventObject from '../event/EventObject';
-import { getSource, isMouseEvent } from '../../util/eventUtils';
+import { getSource, isMouseEvent } from '../../util/EventUtils';
 import EventSource from '../event/EventSource';
 import { hasScrollbars } from '../../util/styleUtils';
 import { Listenable } from '../../types';
diff --git a/packages/core/src/view/other/PrintPreview.ts b/packages/core/src/view/other/PrintPreview.ts
index 2228c8a76..a3ffacbf0 100644
--- a/packages/core/src/view/other/PrintPreview.ts
+++ b/packages/core/src/view/other/PrintPreview.ts
@@ -9,7 +9,7 @@ import TemporaryCellStates from '../cell/TemporaryCellStates';
 import InternalEvent from '../event/InternalEvent';
 import Client from '../../Client';
 import { intersects } from '../../util/mathUtils';
-import { DIALECT } from '../../util/constants';
+import { DIALECT } from '../../util/Constants';
 import { write } from '../../util/domUtils';
 import { Graph } from '../Graph';
 import CellState from '../cell/CellState';
diff --git a/packages/core/src/view/style/EdgeStyle.ts b/packages/core/src/view/style/EdgeStyle.ts
index e2abc1508..92d521fcd 100644
--- a/packages/core/src/view/style/EdgeStyle.ts
+++ b/packages/core/src/view/style/EdgeStyle.ts
@@ -5,8 +5,8 @@
  * Type definitions from the typed-mxgraph project
  */
 
-import { getValue } from '../../util/utils';
-import { getNumber } from '../../util/stringUtils';
+import { getValue } from '../../util/Utils';
+import { getNumber } from '../../util/StringUtils';
 import {
   contains,
   getBoundingBox,
@@ -22,7 +22,7 @@ import {
   ELBOW,
   ENTITY_SEGMENT,
   NONE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Rectangle from '../geometry/Rectangle';
 import Geometry from '../geometry/Geometry';
 
@@ -483,7 +483,7 @@ class EdgeStyle {
    * edge.
    */
   static SegmentConnector(state: CellState, sourceScaled: CellState, targetScaled: CellState, controlHints: Point[], result: Point[]) {
-    
+
     // Creates array of all way- and terminalpoints
     // TODO: Figure out what to do when there are nulls in `pts`!
     const pts = <Point[]><unknown>EdgeStyle.scalePointArray(<Point[]><unknown>state.absolutePoints, state.view.scale);
diff --git a/packages/core/src/view/style/Perimeter.ts b/packages/core/src/view/style/Perimeter.ts
index 652c95311..fdec4d674 100644
--- a/packages/core/src/view/style/Perimeter.ts
+++ b/packages/core/src/view/style/Perimeter.ts
@@ -7,7 +7,7 @@
 
 import { intersection } from '../../util/mathUtils';
 import Point from '../geometry/Point';
-import { DIRECTION } from '../../util/constants';
+import { DIRECTION } from '../../util/Constants';
 import Rectangle from '../geometry/Rectangle';
 import CellState from '../cell/CellState';
 import { CellStateStyles } from '../../types';
diff --git a/packages/core/src/view/style/StyleRegistry.ts b/packages/core/src/view/style/StyleRegistry.ts
index 1bfbacc64..9a228cc05 100644
--- a/packages/core/src/view/style/StyleRegistry.ts
+++ b/packages/core/src/view/style/StyleRegistry.ts
@@ -8,7 +8,7 @@
 import {
   EDGESTYLE,
   PERIMETER,
-} from '../../util/constants';
+} from '../../util/Constants';
 import EdgeStyle from './EdgeStyle';
 import Perimeter from './Perimeter';
 
diff --git a/packages/core/src/view/style/Stylesheet.ts b/packages/core/src/view/style/Stylesheet.ts
index 4a744f0f3..05d8e9d1d 100644
--- a/packages/core/src/view/style/Stylesheet.ts
+++ b/packages/core/src/view/style/Stylesheet.ts
@@ -9,12 +9,12 @@ import {
   ARROW,
   NONE,
   SHAPE,
-} from '../../util/constants';
+} from '../../util/Constants';
 import Perimeter from './Perimeter';
 import { clone } from '../../util/cloneUtils';
 import { isNumeric } from '../../util/mathUtils';
 import CodecRegistry from '../../serialization/CodecRegistry';
-import { NODETYPE } from '../../util/constants';
+import { NODETYPE } from '../../util/Constants';
 import MaxLog from '../../gui/MaxLog';
 import StyleRegistry from './StyleRegistry';
 import ObjectCodec from '../../serialization/ObjectCodec';
diff --git a/packages/core/src/view/undoable_changes/CellAttributeChange.ts b/packages/core/src/view/undoable_changes/CellAttributeChange.ts
index d10ae2649..6efc1f2e6 100644
--- a/packages/core/src/view/undoable_changes/CellAttributeChange.ts
+++ b/packages/core/src/view/undoable_changes/CellAttributeChange.ts
@@ -1,4 +1,4 @@
-import { isNullish } from '../../util/utils';
+import { isNullish } from '../../util/Utils';
 import Cell from '../cell/Cell';
 import CodecRegistry from '../../serialization/CodecRegistry';
 import GenericChangeCodec from './GenericChangeCodec';
diff --git a/packages/core/src/view/undoable_changes/ChildChange.ts b/packages/core/src/view/undoable_changes/ChildChange.ts
index 34c14748b..22b0d01fd 100644
--- a/packages/core/src/view/undoable_changes/ChildChange.ts
+++ b/packages/core/src/view/undoable_changes/ChildChange.ts
@@ -2,7 +2,7 @@ import GraphDataModel from '../GraphDataModel';
 import Cell from '../cell/Cell';
 import ObjectCodec from '../../serialization/ObjectCodec';
 import CodecRegistry from '../../serialization/CodecRegistry';
-import { NODETYPE } from '../../util/constants';
+import { NODETYPE } from '../../util/Constants';
 
 import type { UndoableChange } from '../../types';
 import Codec from '../../serialization/Codec';
diff --git a/packages/core/src/view/undoable_changes/RootChange.ts b/packages/core/src/view/undoable_changes/RootChange.ts
index 817e579aa..4797c39c3 100644
--- a/packages/core/src/view/undoable_changes/RootChange.ts
+++ b/packages/core/src/view/undoable_changes/RootChange.ts
@@ -1,7 +1,7 @@
 import Cell from '../cell/Cell';
 import GraphDataModel from '../GraphDataModel';
 import CodecRegistry from '../../serialization/CodecRegistry';
-import { NODETYPE } from '../../util/constants';
+import { NODETYPE } from '../../util/Constants';
 import ObjectCodec from '../../serialization/ObjectCodec';
 
 import type { UndoableChange } from '../../types';