footballism wrote:
As an extra question, I think the default look and feel of menu in Avalon is quite ugly(some sort of traditional windows look and feel), how to spice it up? for example, if I wanna have the menu in Avalon displaying in Windows XP style, how can I achieve this?



I recently made a Radial Menu in Avalon which of course is quite different in both style and function from a regular "traditional" menu, so you might want to check out the code for that too if you plan on getting in much deeper than a simple skin.  It's in the Sandbox here on C9 too.