This is a playground to test JavaScript. It runs a completely standard copy of Node.js on a virtual server created just for you. Every one of npm’s 300,000+ packages are pre-installed, so try it out:
const text = "The [blue-100](token://blue-100) CCW header only uses two of the Spectrum [font100](token://font100) color themes for the MAX 2021 version 1 release: [light](/page/color/#Device-light-mode) and [dark](/page/color/#Device-dark-mode)."
const regexpNames = /\[([^\[\]]*?)\]\(token:\/\/(\S*?)\)/gsi;
const match = [...text.matchAll(regexpNames)];
console.log(match[0][1]);
console.log(match[1][1]);