Better Checkbox Coloring on Dialog when using FormToolkit

[marcushoepfner]

Issue #416

[marcushoepfner]

Before:

After:

But unfortunately also influences:

So there is a bit more to fix.
@BeckerWdf, can you help here?

[github-actions]

Test Results

 1 821 files  ±0   1 821 suites  ±0   1h 52m 34s ⏱️ - 1m 51s
 7 724 tests ±0   7 496 ✅ +1  228 💤 ±0  0 ❌  - 1 
24 333 runs  ±0  23 586 ✅ +1  747 💤 ±0  0 ❌  - 1 

Results for commit db20643. ± Comparison against base commit 83c128c.

[vogella]

Could you use the shell style for selection?

/* Style for SWT.PUSH buttons in dialogs /
Shell[style=SWT.APPLICATION_MODAL] Button[type=SWT.PUSH] {
background-color: #007ACC; /* Change to your desired background color */
}

[BeckerWdf]

we could also try to use "inherit" instead of "unset"