There are three major ways to contribute to Paintbrush:
Spread the word!The easiest way to help out Paintbrush is to tell people about it. Tell your parents, tell your friends, tell your little sister – just get the word out!
Help make Paintbrush better!Paintbrush has always been, and will always be, completely open source. This makes it simple for anyone to contribute a patch for a desired feature or their pet bug. Just make sure you’ve already let us know before you put too much time into it: there’s always a chance that we’re already working on it.
Want an up-to-the-minute snapshot of the program's development? Fire up the terminal and run the following command to check out the latest source:
svn co https://paintbrush.svn.sourceforge.net:443/svnroot/paintbrush/Paintbrush2/branches/
(Note: this code is almost always a work in progress, so don’t expect much.)