Learn how to use KolourPaint!
Understand KolourPaint Tool Bar and how to use various tools in it.
Also included some tricks in the end!
Link to download KolourPaint for windows -
https://binary-factory.kde.org/view/Windows%2064-bit/job/Kolourpaint_Nightly_win64/

Link to download KolourPaint for Linux --
https://kde.org/applications/en/kolourpaint