Created attachment 662540 [details]
Screenshot for "back up now"

Description of problem:
déjà-dup UI element for "Restore..." and "Back Up Now" show text on white color, so you can't read it easily.

Version-Release number of selected component (if applicable):
deja-dup-20.2-2.fc17.i686

How reproducible:
Make a backup or restore with deja-dup

Steps to Reproduce:
1. Open deja-dup-preferences
2. Click on "Back Up Now" or "Restore..."
  
Actual results:
Show a windows with white text over a grey background, so you can't read it easily.

Expected results:
Show a windows with black text.

Additional info:
See attachment