Created attachment 361720 [details] Non-transparent background for top bar With the patch on bug 453086 special bugs get a distinctive look, e.g. security bugs. The one thing which looks odd is the topbar. Due to it is not transparent we have an ugly white bar at the top. See the attachment. It would be great if we can add an alpha transparency and use the png image format to have a smooth shadow, whether which background color is selected.
On the bmo-4.0 branch, I have removed the top image, so now the background colour goes all the way to the top. This looks better. Gerv