Plasma Glow is a graphic I made with Unity 2019.3.13f1 using Shader Graph. It’s composed by a Voronoi node and some other nodes to make it look like this.
You can download the sources for free. There’s also a Linux binary to try it out without having to get the whole project and to install the Unity editor.
The license doesn’t apply to the pre-compiled Linux binary.Plasma Glow, published on May 8, 2020.