In one of my themes, doorhangers have transparent backgrounds, and I cannot find where the background is controlled. The File Bookmark popup and the dialog from CookieFast are doorhangers and have a transparent background with this theme (SeaMonkey Gray Modern Revived). Which stylesheet in a theme controls the background of doorhangers?
Which stylesheet in a theme controls the background of doorhangers?
No one really calls these 'doorhangers', they are arrow panels (or dropdowns) and the internal code still uses that name. Transparent backgrounds are usually the result of conflicting rules, especially unneeded :not rules.
The file bookmark panel does not have arrows, so it cannot be an arrow panel. It is a dropdown, but the only dropdown listed in editBookmarkOverlay.css is for dropdown icons and there are no icons in the transparent area either. I tried editing popup.css and changing the one item that was transparent. That made no difference.