Fractals made with Mandelbulber. They were processed with Gimp 2.10 with python plug-ins like 'Interleave Layers' by ofnuts. Also the AnimStack script by Timofei Shatrov. This script seems like it's part of Gimp with reverse/mirror layers and pack/unpack linked layers. To change color of a video stream I select one frame and apply it over another layer of a single color using the 'difference' parameter. When I'm happy with the outcome I apply this color layer to all frames in the video stream. Using AnimStack I reproduce this frame around a thousand times and merge these frames with the video frames using 'Interleave Layers' set to 'difference'.

Cool. I like the music too