Kritta. Krita is a professional FREE and open source painting program. In the beginning it was developed for Linux as part of KDE and included in Calligra Suite.
Krita is one of the best free painting programs available and includes a great variety of tools and features. Once you have your setup you can save it as your own workspace. The software is maintained by contributions to the Krita Foundation.
Krita is a free and open source digital painting software available for Windows.
You can also create your own shortcuts for commonly used. Creative Freedom in your hands. Krita is a free and open source raster graphics editor for those looking for a set of art tools without big price tag. Get better performance and create.