I don't know if testing is still needed, but here are my results anyway. Running win8 x64 on an older laptop with a 8600m GT, using the AGTweaker 1.2.2/DWMHook 0.8 (is that the latest public build?) Had to fiddle around with rendering modes until it worked - currently working in DX9.1 mode. DX10.0 mode only has two states, opaque and total transparency without blur. I don't know if it's an AGT bug, but the inactive color doesn't work for me at all, no matter which I choose the inactive color stays black. Taskbar follows active color correctly though. Also, changing settings for blur/transparency sometimes lead to a black screen after applying them, usually if I do it repeatedly. Looking forward to the finished product.