Examine source code of Prettier UKSC

{
  "manifest_version": 2,
  "name": "Prettier UKSC",
  "version": "0.1.0",
  "description": "The extension changes the typography on BAILII to make it more visually appealing",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "144": "icon144.png"
  },
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "matches": [
        "https://bailii.org/*",
        "https://www.bailii.org/*",
        "http://www2.bailii.org/"
      ]
    }
  ]
}