It aims to be conceptually simple to understand, providing a level of functionality targeted towards the average user.
KolourPaint is designed for daily tasks such as:
Painting: drawing diagrams and "finger painting"
Image Manipulation: editing screenshots and photos; applying effects
Icon Editing: drawing clipart and logos with transparency
In version K Desktop Environment 3.3, KolourPaint replaced KPaint as the standard simple painting application.
KolourPaint has a port to Microsoft Windows as part of the KDE on Windows initiative.
In the latest KDE release 4.7 kolourpaint got some important enhancements:
Alpha Channel Transparency Support allows now to edit images not only with full transparent or full opaque pixels but also with semi-transparent pixels blending colors on top of each other (supported e.g. in the PNG file format)
The tools "toolbar" is now a real KDE toolbar, allowing it to move around and dock it either horizontally or vertically as you like it.
Taking a screenshot is now an integrated functionality and no longer requires an external application
The source repository of kolourpaint was moved to the new KDE git infrastructure along with all the other KDE graphics applications