Description of problem:
Tray-Icon don't have transparent background.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. launch stardict
2. set toppanel's background to color+transparent,
every other icon in the panel tray area receives transparent background,
while stardict's icon's background is still gray.
the icon's background become transparent.
Created attachment 296300 [details]
The gray background.
Thank you, it is fixed in f9 now.