Comment 8 for bug 393585

Fixing this would involve making the focused selection color substantially more colorful than the unfocused selection color -- for example, aubergine vs. grey, or orange vs. grey.

Unfortunately, the Light themes appear to be using the selection color to color buttons. For example if I set the selection color to aubergine, all buttons go purple too. Fixing that might be difficult enough to take this out of the realm of a papercut.