Yes, the source is the problem, this bug occurs in snap version! I've reinstalled the theme using apt and PPA and this problems now longer occur, system monitor and calculator have the default white theme, which is better than having no theme at all
sudo add-apt-repository ppa:communitheme/ppa sudo apt update sudo apt install ubuntu-communitheme-session
then reboot and on login screen change the session to communitheme with xorg
Yes, the source is the problem, this bug occurs in snap version! I've reinstalled the theme using apt and PPA and this problems now longer occur, system monitor and calculator have the default white theme, which is better than having no theme at all
sudo add-apt-repository ppa:communithem e/ppa communitheme- session
sudo apt update
sudo apt install ubuntu-
then reboot and on login screen change the session to communitheme with xorg