I came across the Drawpile program and decided to share it with you. So, it's a functional raster graphics editor based on C++ / QT. It has all the basic functions for editing and drawing, and it also allows collaborative drawing over the Internet with other users. After launch, you'll find minimal settings and maximum enjoyment, all in Russian. Overall, it's very easy to understand, and thanks to the developers for that. If you've dealt with other graphic editors before, I think you'll get the hang of it quickly.

The software has a built-in server capable of saving the current session and returning to it at your convenience. It also supports saving multiple sessions simultaneously, which is very convenient for collaborative work. Note that if you have a graphics tablet, using the Drawpile program becomes a pleasure, as it makes work easier. Even the tilt of the pen will be taken into account, along with drawing speed, pressure sensitivity, and more.

The software supports the most popular formats and can work with layers