Random Vibrations vs Harmony
Pressure is Balanced Out vs Colliding
In this 3rd video there are as of 1:44 some different Rendering Modes:
Group Color : where each group-size of particle has it's color: White, Red & Blue
Single color: All particles in white
Period of the particles: Where they change color as they change in size (contract-attract/expand-push)
Density: mainly in Red
Size: Different tones of Yellow
The program is made in GODOT and will be posted soon on Git. Credit to David S. for the development and his foundation.