I did a little hacking on the processing UI and realized arduino was pretty much built off the same IDE (not sure which came first). But figured I would port the changes over to ardiuno too since it wouldn't take much extra work. here is what I was able to achieve. I can only look at a white UI for so long... hah.
I really would like to do more with it, but I didn't have time to poke around a all the files-- just found a few images and code theme files.
let me know if you're interested and I'll write up a tutorial, or video of it, its pretty easy just copying some files over. maybe someone has more experience with this and can tell me where I can actually move placement of buttons and maybe edit scroll bars and such.
ideally I would like to do something like this (note this is the processing version):