I don't know about others. To me the menu background of skin x1 is too distracting. It makes the buttons hard to see.
I agree. It was a first draft (eXperimental 1), and I think I'll change it at some point so that there's just one background graphic per menu and the graphic is in an area where it doesn't overlap buttons.
I just used the button png files from the simple menu to replace the buttons in x1... :p
I also modified the corners of button slightly to make it look a little more rounded.
I do wish somebody would change that background, it would be a good skin if they did...