Examine source code of Zen Tab Search

{
  "manifest_version": 2,
  "name": "Zen Tab Search",
  "version": "1.94",
  "description": "Fuzzy search for tabs in Zen Browser with a modern omnibar overlay",
  "permissions": [
    "tabs",
    "<all_urls>",
    "tabGroups"
  ],
  "commands": {
    "show-omnibar": {
      "suggested_key": {
        "default": "Alt+T",
        "mac": "MacCtrl+T"
      },
      "description": "Open tab search omnibar"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "icons/default-favicon.svg"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "zen-tab-search@extension.example",
      "strict_min_version": "78.0"
    }
  },
  "icons": {
    "48": "icons/icon-512.png",
    "96": "icons/icon-512.png"
  }
}