**BUG**
Concise problem statement:
I used the White on Black color scheme last night to give my eyes a rest. It looked like it was just an editor theme. There was no warning that it would overwrite the colors of all of my custom parts. Now I have no way to restore my schematic to the colors it originally had. I've permanently lost that data.
Steps to reproduce bug:
1. Open schematic with many parts
2. Select White on Black from the theme colors menu option
Results:
Color information on all parts is changed with no warning message. If you save the schematic it is permanently lost.
Expected results:
Editor theme temporarily changes without removing color data **or** a large warning is displayed about overwriting data.
Browser:
Google Chrome, Windows 7