When creating a new group, use the color of last requested solid.

src/group.cpp

@@ -222,6 +222,15 @@ void Group::MenuGroup(int id) {
 
         default: oops();
     }
+
+    // Copy color from the previous mesh-contributing group.
+    if(g.IsMeshGroup() && SK.groupOrder.n > 0) {
+        Group *running = SK.GetRunningMeshGroup();
+        if(running != NULL) {
+            g.color = running->color;
+        }
+    }
+
     SS.GW.ClearSelection();
     SS.UndoRemember();
 

src/groupmesh.cpp

@@ -430,6 +430,17 @@ Group *Group::RunningMeshGroup(void) {
     }
 }
 
+bool Group::IsMeshGroup() {
+    switch(type) {
+        case Group::EXTRUDE:
+        case Group::LATHE:
+        case Group::ROTATE:
+        case Group::TRANSLATE:
+            return true;
+    }
+    return false;
+}
+
 void Group::DrawDisplayItems(int t) {
     RgbaColor specColor;
     bool useSpecColor;

src/sketch.h

@@ -243,6 +243,7 @@ public:
     // And the mesh stuff
     Group *PreviousGroup(void);
     Group *RunningMeshGroup(void);
+    bool IsMeshGroup();
     void GenerateShellAndMesh(void);
     template<class T> void GenerateForStepAndRepeat(T *steps, T *outs);
     template<class T> void GenerateForBoolean(T *a, T *b, T *o, int how);

src/solvespace.cpp

@@ -852,3 +852,15 @@ BBox Sketch::CalculateEntityBBox(bool includingInvisible) {
     }
     return box;
 }
+
+Group *Sketch::GetRunningMeshGroup() {
+    if(groupOrder.n < 1) return NULL;
+    Group *g = GetGroup(groupOrder.elem[groupOrder.n - 1]);
+    while(g != NULL) {
+        if(g->IsMeshGroup()) {
+            return g;
+        }
+        g = g->PreviousGroup();
+    }
+    return NULL;
+}

src/solvespace.h

@@ -672,6 +672,7 @@ public:
     void Clear(void);
 
     BBox CalculateEntityBBox(bool includingInvisible);
+    Group *GetRunningMeshGroup();
 };
 #undef ENTITY
 #undef CONSTRAINT