1. Run the attached test
2. You will see a 2 shapes with a checkbox.
3. Selecting the checkbox would fill the shapes with a solid color and de-selecting the checkbox would fill it with transparent color
4. Select and de-select the checkbox and see if the shape is getting filled with solid and transparent color.

If the shapes are filled with green color, then it is a bug. I reproduced it on WinVista - soma-graphics-scrum-b142 with prism. Not reproducible with swing pipeline.