To convert color scheme just:
coloration is editor/IDE color scheme converter. Right now it allows you to convert your favourite Textmate color scheme (in XML plist format) to Vim, JEdit and KDevelop/Kate/Kwrite color scheme. It tries to do its best to generate the most accurate result for given target.
If you like to install coloration on your own machine to do some batch conversion or for
some other reason just
gem install coloration. It gives you tm2vim, tm2jedit and
tm2katepart binaries to do the conversion on command line.
If you found a bug or want to look at the source code you should go to githubs.