LiChess Animated Clock

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "LiChess Animated Clock",
  "description": "This extension shows an animated clock while playing game on Lichess.org",
  "version": "1.1",
  "content_scripts": [
    {
      "matches": [
        "http://lichess.org/*",
        "https://lichess.org/*"
      ],
      "css": [
        "./style.css"
      ],
      "js": [
        "./timer.js"
      ]
    }
  ]
}