Lightweight and with lots of mysterious upgrades (auto translate each one within reach at a time gives some idea). the citations are impressive so I trust the dev. May take months but is fun to play with. Putting this in console makes dark mode document.head.innerHTML = document.head.innerHTML.replace(/background.{0,24};/g,'') .replace('<style>','<style>\n *{background-color: black; color: white}')