@baillehache_pascal Sparklers were also my first association when I saw these... The process is purely monochrome so far, the only (faint) color comes from a gradient map applied when exporting an image. There are however ways to add proper color by combining/superimposing multiple systems. They don't necessarily need to be additive, some of them could also be opaque or subtractive, which could lead to very interesting structures...
