Overall, this is an amazing add-on, and the dark themes really improve the look of youtube itself. However, this causes the youtube website to be very unresponsive. Moving the mouse over suggested video links causes the window to not redraw and it takes several seconds for tooltips to appear aswell as the URL's being hilighted.

I'm finding it unusable like this and had to disable it.

Very good, but has bugs in polish translation. Self-explanatory description not working.

In my mind not bad, but nothing new...