I'm wondering why this has not been fixed after such a long time. It can at least be improved easily. If the Adwaita theme works (which it does in may case, too), then it is (at least partly) a theme issue. In fact, some defaults seem to be missing in the Ambiance and Radiance themes:
By setting a default for the text background color in the following file, most problems (gnome-calculator, gedit) are resolved for me: /usr/share/themes/Ambiance/gtk-3.20/gtk.css: textview text { background-color: white; } @import url("gtk-main.css"); However: * Some problems remain., e.g. emacs scrollbar background color broken, too. The following solves that partly, too, but not completely: scrollbar { background-color: white; } * If you change such system files, they will get reset with some later system updates. (dpkg-divert can help to prevent such resetting/updating of files) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1760818 Title: gedit and gnome-calculator transparency/graphics corruption issue when GTK_IM_MODULE=xim is set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1760818/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs