Glass Field2DObject Color Picker Shows the Wrong Color

[jasondaming]

When changing the properties of a Field2dObject select a new color that color is not what is shown.

Steps to reproduce the behavior:

1. Open Field2d (I did this in Sim)
2. Right Click the top and change the color of something like line color
3. Click a new color on the slider on the right
4. Observe both the dot in the upper right and the color box show a different color than the one clicked on