With adwaita-icon-theme 42, folder icons are blue, making the 'unread messages' emblem almost invisible
I recently updated to adwaita-icon-theme 42 on Fedora 36. The folder icons in Evolution (which used to be yellow, IIRC) are now blue. Since the 'this folder has unread messages' emblem is also blue, it's now almost invisible - very hard to see on a quick scan, as I frequently do.