Thanks for your report. Do you know if the issue is present in e.g. 20.04 or 20.10 as well?
Assuming you are using Kubuntu, I don't have access to any Kubuntu install ATM. But both Mozc Setup and About Mozc look good for me on Ubuntu 20.10 and 21.04, i.e. it honors the theme in effect, in my case Yaru which is a GTK theme. ** Changed in: mozc (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1920578 Title: mozc-tool ignores KDE Qt theme To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mozc/+bug/1920578/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs