Sorry to burst everyone's bubble, but the line around the window was just put there in Photoshop because I wanted the window to show up when I posted it. There isn't a way to add in the border, the window background color is just specified with an 8 x 8 pixel swatch.

I'm glad people are liking it. I saw some people wanting a warmer theme, so took it upon myself to start one.

The one question I do have is how to change the blue color around the focused text field. I can't seem to do it in Cocoa apps, it seems to be baked into each app. Is there a way to change that color that I don't know about?