Examine source code of Title Tamer

{
  "manifest_version": 2,
  "name": "Title Tamer",
  "version": "1.3.0",
  "description": "Monitors tabs and changes their titles based on user-defined search patterns.",
  "homepage_url": "https://github.com/irvinm/Title-Tamer",
  "permissions": [
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "lib/pattern-utils.js",
      "lib/sync-state-utils.js",
      "lib/sync-engine-logic.js",
      "background/background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "TitleTamer@irvinm.addons.mozilla.org",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_icon": "icons/icon-context.svg",
    "default_title": "Title Tamer",
    "default_popup": "options/options.html"
  }
}