I was testing this mod in multiplayer last night and got some footage, with some complimentary music to go with the astronaut's emissives.
This is a simple mod which allows your character's Emissive parts to change colors at varying speeds.
The mod includes commands, to allow for some customization.
/rgbengineers speed [speedvalue] - Sets the Emissive parts color changing speed in seconds.
/rgbengineers toggle - Toggles the Emissive parts color changing on or off. Toggling OFF reverts everything to default.
This mod is multiplayer ready, and you can see other players' Emissive parts changing in real time as well.
https://steamcommunity.com/sharedfiles/filedetails/?id=3434794618