I've developed a purely cosmetic but, nonetheless annoying, issue with my account on the MacBook: the system folders all lost their icons. I've only just noticed it but that doesn't mean it's not been like that for a while.
I created a test account which is fine and managed to copy the icons from the respective folders here but the sidebar was unaffected.
The Finder and sidebar preference files have been trashed on multiple occasions causing the sidebar to revert to its default items but the issue persists. Both the Finder Preferences dialog and the Go menu show them fine, just not the sidebar.
I hate having an issue I can't resolve.