John Gruber has released a command line tool called BBColors which allows BBEdit and TextWrangler users to save, reload and even share customized color schemes. BBEdit, like many code-friendly text editors, has offered a coloring system for some time, but it still doesn't allow users to save and swap out schemes for, say, different languages or simply different days of the week. John's free utility not only brings color swapping to these app's tool belts, but he also posted a few examples to help get your feet wet. DeviantART, eat your heart out.
Instructions for installation and usage can be found on Mr. Gruber's project page for BBColors.