It is currently only demo, we were not sure, how this visualization will be usable in JS. It is based on implementation from Matt Gattis, which was sadly never finished, so is buggy and does not support all Milkdrop features. Presets have similar format, only changed from INI to JSON. We tried to select at least some, which look already good. We would like to fix and improve it later, but hard to say when now.

Well, having renamed 'PresetsAll' file to 'Presets, replacing the original file, it is rather more interesting as a visualiser.
I'd still appreciate hearing about the plans for setting the options and, potentially, importing favourite presets.

MM5 is even more than I'd hoped for- thanks all.
Could anyone indicate whether at some point it might be possible to import my old favourite .milk presets into the new implementation of the program?
Mark