Some more information. It seems the problem comes from the fact that the concept of a background color has been deprecated in recent versions of GTK, and no replacement has been made in the Emacs code : https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-09/msg01099.html
Emacs fails to load an appropriate bg color and seems to default to this almost invisible light grey. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1628707 Title: Highlighting a region in emacs is invisible because region color equals window color To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/emacs24/+bug/1628707/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
