where is the discord "now playing" metadata generator stored?

[Arkanic]

it probably doesn't exist, but i was just wondering trying to fix a bug where if a map has a custom colour, discord will display that as part of the map name E.g

Arkanic is Playing Mindustry
Wave 10 on map [orange]cool map

it'd be easy to fix with some filter code like

data = data.replaceAll("\\[.*?\\]", "");

[Arkanic]

found it