After upgrading to 16.04, my nice purple desktop stopped being entirely purple. After today's batch of security etc. fixes, my desktop is now royal blue.
I'm not seeing any way to control colour in the "settings" app. This may be because the "displays" tab simply tells me "could not get screen information".
Is there any way to set a desktop background and general colour scheme in Ubuntu's default window manager, or am I entirely at the whim of the developers?
Update - when I rebooted, I got back the ugly mix of purple and red that came with the upgrade to 16.04. So at least there wasn't an intentional colour change made mid-release.