diff --git a/src/document.cpp b/src/document.cpp
index b03df74c..c7f19f16 100644
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -65,13 +65,7 @@ Document::Document() :
 
 void Document::applyPreferencePartColorChange()
 {
-    for (auto &it: partMap) {
-        if (it.second.hasColor)
-            continue;
-        it.second.color = Preferences::instance().partColor();
-        it.second.dirty = true;
-    }
-    emit skeletonChanged();
+    regenerateMesh();
 }
 
 void Document::applyPreferenceFlatShadingChange()
@@ -932,7 +926,7 @@ void Document::toSnapshot(Snapshot *snapshot, const std::set<QUuid> &limitNodeId
                 }
             }
             part["dirty"] = partIt.second.dirty ? "true" : "false";
-            //if (partIt.second.hasColor)
+            if (partIt.second.hasColor)
                 part["color"] = partIt.second.color.name();
             if (partIt.second.colorSolubilityAdjusted())
                 part["colorSolubility"] = QString::number(partIt.second.colorSolubility);
@@ -1576,6 +1570,7 @@ void Document::generateMesh()
     toSnapshot(snapshot);
     resetDirtyFlags();
     m_meshGenerator = new MeshGenerator(snapshot);
+    m_meshGenerator->setDefaultPartColor(Preferences::instance().partColor());
     m_meshGenerator->setGeneratedCacheContext(&m_generatedCacheContext);
     if (!m_smoothNormal) {
         m_meshGenerator->setSmoothShadingThresholdAngleDegrees(0);
diff --git a/src/meshgenerator.cpp b/src/meshgenerator.cpp
index e87b9c8e..d9f50445 100644
--- a/src/meshgenerator.cpp
+++ b/src/meshgenerator.cpp
@@ -1151,3 +1151,8 @@ void MeshGenerator::generateSmoothTriangleVertexNormals(const std::vector<QVecto
         }
     }
 }
+
+void MeshGenerator::setDefaultPartColor(const QColor &color)
+{
+    m_defaultPartColor = color;
+}
diff --git a/src/meshgenerator.h b/src/meshgenerator.h
index 40500f8a..d71a2e60 100644
--- a/src/meshgenerator.h
+++ b/src/meshgenerator.h
@@ -62,6 +62,7 @@ public:
     void generate();
     void setGeneratedCacheContext(GeneratedCacheContext *cacheContext);
     void setSmoothShadingThresholdAngleDegrees(float degrees);
+    void setDefaultPartColor(const QColor &color);
 signals:
     void finished();
 public slots: