Examine source code of Q search

{
  "name": "__MSG_name__",
  "version": "1.0.3",
  "manifest_version": 2,
  "description": "__MSG_description__",
  "background": {
    "scripts": [
      "worker.js"
    ],
    "persistent": true
  },
  "permissions": [
    "browsingData",
    "tabs",
    "<all_urls>"
  ],
  "optional_permissions": [
    "management",
    "history",
    "topSites",
    "downloads",
    "bookmarks"
  ],
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png"
    }
  },
  "default_locale": "en",
  "homepage_url": "https://ranhe.xyz/qsearch",
  "content_scripts": [
    {
      "js": [
        "index.js"
      ],
      "all_frames": false,
      "run_at": "document_start",
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "web_accessible_resources": [
    "widget/*.css",
    "assets/*.svg"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f13194c1-c50a-4e74-aba6-f7b067ddadbd}"
    }
  }
}