I found that installing subtitlecomposer changes the mime database so that the type of two png files from the default Ambiance theme becomes "text/x-tmplayer" instead of "image/png", thus gtk-window-decorator unable to load the theme.
** Package changed: light-themes (Ubuntu) => subtitlecomposer (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993275 Title: ambiance theme not loaded To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/subtitlecomposer/+bug/993275/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
