This is a really nice idea, although I think the default preferences have way too much going on visually to be called a "pro skin"
But yeah, have some feedback^^
Removing the cursor trail currently doesn't work just by copying the files from "off" over... could the files have the wrong names? (Preferences -> UI - Cursor -> Cursor Trail -> Off)
The files are named "comboburst"... just replacing "cursortrail.png" with "empty" .pngs fixed the problem for me..
Also, I don't like the spinner too much.. even the "simple one" kind of has too much going on for me.. I'd like an even simpler, "just an outline" kind of spinner^^ (EDIT 2: After playing with it for a bit, I have to say you definitely get used to the simple one, so it's not that bad.. still, I'd like a simpler one
)
Plus it would be nice to be able to change the Slider followcircle, as the default one has a lot of "glow"... turning it off makes it way easier to play imo^^ maybe a simple circle would also be good there..
Oh, and one last thing: Maybe an option to replace or even turn off some (EDIT:
menu) sounds? Some of the sounds are not only annoying, but also very long, so they still fade out while the map/song has already started.
That's about it. As I said, very good idea, just some few things that bother me personally