How can I contribute to GTK+?

It's simple. If something doesn't work like you think it should in a program, check the documentation to make sure you're not missing something. If it is a true bug or missing feature, track it down in the GTK+ source, change it, and then generate a patch in the form of a 'context diff'. This can be done using a command such as diff -ru <oldfile> <newfile>. Then upload the patchfile to:

ftp://ftp.gtk.org/incoming

along with a README file. Make sure you follow the naming conventions or your patch will just be deleted! The filenames should be of this form:

gtk<username>-<date yymmdd-n>.patch.gz
gtk-<username>-<date yymmdd-n>.patch.README

The "n" in the date indicates a unique number (starting from 0) of patches you uploaded that day. It should be 0, unless you upload more than one patch in the same day.

Example:

gtk-gale-982701-0.patch.gz
gtk-gale-982701-0.patch.README

Once you upload anything, send the README to ftp-admin@gtk.org