I am using Version 15.7.6390. Changed the colors; one of them is a dark red. The mailbox labels, (Inbox, for instance), now show up in a shade of pink (related to the primary color setting but much lighter) not specified in the original color settings. Going back to the default colors, that pink color still remains.  What can I do about this?

 

And BTW, why can't I embed an image in THIS thread (for example) without having to upload it to a website and reference it as a URL?