tux-paint

Tux Paint is a free, award-winning drawing program originally created for children ages 3 to 12,
but enjoyed by all! It combines an easy-to-use interface, fun sound effects, and an encouraging
cartoon mascot who guides children as they use the program.

You're presented with a blank canvas and a variety of drawing tools to help them be creative.
Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn
or photographic imagery to pictures, and a set of "magic tools" that provide filter effects
(like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass).

Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic,
and a large collections of stamps are available as a separate download. Additional content
can be added by parents & teachers, or downloaded from 3rd parties.

Tux Paint is available for Windows, macOS, Android, Linux, & Haiku operating systems, among others.

More build details: https://github.com/Joker2770/TuxPaint-snap