It's not visible in metacity-theme-viewer. What is visible here is the first character rendered differently in the maximized state.
See the attached images. ** Attachment added: "metacity-theme-viewer focused maximized window" https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1780468/+attachment/5160982/+files/metacity_theme_viewer_focused_maximized.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1780468 Title: Blurry titlebar font when window is not maximized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1780468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs