halostatue/mime-types — pull request #17 by rfc2822 (2012-05-12 17:45:21+00:00)
Title: Add image/x-xcf and image/x-compressed-xcf

Please check if correct.

Is it possible to add xcf.gz and xcf.bz2 (with the period) as image/x-compressed-xcf, too? I didn't try because I tar.gz and tar.bz2 isn't in the list, too.