Some months ago I was talking about the fact that I'd like to see ALL aMule's icons replaced by Tango ones in next version. I don't know how much coding effort it would take, nor I know how to do it, since those icons are not present as image files in the source code and I'm not a programmer; I don't even know whether the developpers really want to implement it (even if wuischke seemed quite interested)...
Anyway, I'm going to upload some "mockups" of what I'd like to see in version 2.2.
NOTE: these are NOT screenshots. Icons were added manually. (GIMP rules!

)
Attached: Mockup no. 1 -- Transfers window