In reply to Jncl:
Can I do a small nitpicky suggestion? The hover effect on the tabs in the talent window is not perfectly aligned as you can see in the following image: https://imgur.com/a/HTX52T2
As you can see, the hover effect needs to go down a pixel or 3 (you can see a small 1 pixel line above the tab where the hover effect starts) so that it fits perfectly. I hope you want to change that! Makes your perfect addon even better!