http://krita.org - Krita is a KDE program for sketching and painting, offering an end–to–end solution for creating digital painting files from scratch by masters. Fields of painting that Krita explicitly supports are concept art, creation of comics and textures for rendering. Modelled on existing real-world painting materials and workflows, Krita supports creative working by getting out of the way and with snappy response. Version 2.3 (Chagall) is much faster, more stable and introduces new features like the next generation color selector, the warp and transform tool, new brush tools, per tool presets and faster, keyboard free navigation as well as draggable brush size and canvas rotation. Krita is free and open source software. Less