The Krita project is part of the KDE community. Krita is 
developed on KDE's infrastructure, not Github's. Krita on
Github is just a mirror. Do not create pull requests on
Github.

Please join our Phabricator instance to start contributing. 

https://phabricator.kde.org/

Please see the HACKING file for coding guidelines. The Krita
API documentation is here:

https://api.kde.org/extragear-api/graphics-apidocs/krita/html/index.html

