Examine source code of Better Bing

{
  "manifest_version": 3,
  "name": "Better Bing",
  "author": "Luca Lewin <contact@lucalewin.dev>",
  "description": "Enhance your search experience on Bing with a dark mode and visual improvements",
  "version": "0.3.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "better-bing@extensions.lucalewin.dev"
    }
  },
  "icons": {
    "48": "images/icon.png",
    "96": "images/icon@2x.png"
  },
  "host_permissions": [
    "https://www.bing.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.bing.com/search?*"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.bing.com/search?*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}