Cleanup __color_map in LayerPolygon
Cleanup __color_map in LayerPolygon

fieldOfView/Cura,ynotstartups/Wanhao,fieldOfView/Cura,hmflash/Cura,hmflash/Cura,ynotstartups/Wanhao,Curahelper/Cura,Curahelper/Cura