I've been using it for awhile as well and what's totally nuts is that the entire interface (colors, images, tabs, scrollbars, buttons) are all described in a CSS-like language inside a configuration file. I actually changed all the PNGs out to make the tabs look different and go for a Lion-like scrollbar and it was no sweat. Everything in the entire app is described in JSON config files so you can literally muck around with the internals as much as you want. The best is when you miss a comma, restart Sublime Text and the entire interface is garbled :)