Part of the radical UI changes that accompanied recent Firefox updates was removing of Windows 10 accent color from the tab and menu bar.
Personally, I was very keen on restoring the rectangular tabs that attach and actually look like tabs. Thankfully, I found a wonderful GitHub project and a helpful reddit comment that combined accomplished that.
However, this still me with this ugly black-on-white-on-gray mess:
If you like contrast and being able to distinguish elements or would ev...