--Issue Summary--

After using a vector layer and starting drawing/painting on a Bitmap layer, changes applied on the active layer (bitmap) will also affect some colors on the vector layer

--Actual Results

When changing colours on the bitmap layer, it will affect the last colour applied on the vector layer

--Expected Results--

Vector and bitmap layers are independent.

--Steps to reproduce--

. Open Pencil2D
. Select VECTOR layer
. Select Pencil tool and check the "FILL CONTOUR" (for better visualization) and uncheck "show outlines only" feature on the DISPLAY panel (for visualization of the shapes being filled.
. Draw 3 circles using different colours
. Select now the BITMAP layer and change the colour of the ColorWheel panel: as a result the last filled circle on the VECTOR layer will changed accordingly. It happens when using any other drawing tool

--System Information--

• Pencil2D Version:
  Pencil2D last build 12 SET2017

• Operating System:
  Win8.1 x 64bits

• RAM Size:
  64GB

• Graphics Tablet:
  HUION GT185 HD