My feedback: Remove the ability to click through the skill window.
I keep accidentally grabbing UI elements in the background and keep accidentally turning the camera when instead I want to move the skills window around. This happens because I can click through some parts of the skills window for some reason. This is very inconsistent with how other windows work in EVE.
Clicking through the skills window is possible at all the marked places in the next picture:
Alternatively, maybe rather than removing the ability to click through the marked parts, just remove the marked parts altogether? It’s all wasted screen space.