Explain how this can happen? The window manager only affects this image how?

Question

Graphic arts

I recently started to draw, so I painted on my avatar, took the usual ubuntu logo and began to draw. Later, when I drew, I noticed this very strange bug, the image seemed to be alive !!
Here is the image itself: https://yadi.sk/i/WBB7kZbqgxGYm
Here is the video: https://yadi.sk/i/EnvdZp-vgxGcH
Tell me what it is?) And if this is a bug how to report it to the developers :)

Answer 1

what is this graphical environment?