Comment 32 for bug 1760818

I have just been hit with this on a new install of 18.04 from a CD I had to do because of a hard drive change and full restore. Initially text editor worked well, but one of the applications I added, or a software update, seems to have caused the transparency. The workaround suggested by Heiko L is impossible for me to implement as my text editor/gedit has a transparent background and I cannot see what I am doing.