Aleksei Bavshin

It's for Fedora Linux. I took ownership of the RBTools package a few months ago.

> I'll revert this change in Debian for now since Debian was only cherry-picking the change early. (This only affected Debian Unstable and distros based on that; it didn't reach...

> With this pull request I'm getting a small delay upto one second between toggling bar visibility and it actually showing up on top of fullscreen window. Hiding works fine....

> I think with this pull request there is another issue that is somewhat similar to what @VlctM initially reported in #3211. > > ... > > Long story short...

@VlctM it took me a few weeks, but I finally found a single line I had to add to fix the delays. Please, try this branch again.

I don't believe it's possible to completely fix that one :( The root of the problem is in the [`GtkWindow::update_opaque_region`](https://github.com/GNOME/gtk/blob/d50e6742e67a168ebb122df39a7cbd0ffbbf1d03/gtk/gtkwindow.c#L7323). GTK window has 3 sources of alpha: CSS `background-color`, CSS...