Add kolour paint

[louies0623]

Although there are Gimp or krita available, it is too professional for users who just need simple use.

[probonopd]

Is there a thing such as "too professional"? What kind of use cases would you think Krita is less suitable for?

[louies0623]

For developers, or those who need office documents, they need to point out the location on the picture and only add a description text, and those who need simple drawings.

For example, some users need help. They may need something like MS print to draw simple labels and add explanatory text.
e.g.

[Hierosme]

What about https://github.com/pythonguis/15-minute-apps/tree/master/paint

15-minute-apps is a good starting point