Source: cadmium.js
Cadmium is user script written by Sunwoo Lim, named after Cadmium, a highly-toxic metallic element.
The user script is divided into two parts, namely the Red (cadmium selenide) and Yellow (cadmium sulfide). You can load specific parts of the cadmium user script.
Loading the script currently doesn't work (possibly because Cadmium Yellow is missing).