As pointed out by Nicolás in https://forum.snapcraft.io/t/call-for- testing-chromium-browser-deb-to-snap-transition/11772/14, the gtk- common-themes snap in the candidate channel appears to fix the problem.
I am now trying to bisect what change fixed the problem, and I will talk to the maintainers to have it promoted to stable. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1800260 Title: [snap] with CSD and Yaru, background color of the header bar is incorrect Status in chromium-browser package in Ubuntu: Confirmed Bug description: Description: Ubuntu 18.04.1 LTS Release: 18.04 Channel: Stable Version: 70.0.3538.67 Updated: 10/19/2018 License: Free Developer: Canonical Source: Snap Store Installed Size: 148.2 MB Settings -> Appearance: "Use system title bar and borders" was turned off. Close, minimize, maximize buttons became oval (more of stretched down) instead of circle. Turned back it on, buttons went back to normal shape (circle). It's a repeatable action. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1800260/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp