Examine source code of Favicon Modifier

{
  "manifest_version": 2,
  "name": "Favicon Modifier",
  "short_name": "FaviconMods",
  "version": "0.3.0",
  "description": "Customize tab favicons with icons or images",
  "author": "Blake Gearin",
  "homepage_url": "https://github.com/blakegearin/favicon-packs",
  "icons": {
    "16": "img/logo.svg",
    "32": "img/logo.svg",
    "48": "img/logo.svg",
    "96": "img/logo.svg",
    "128": "img/logo.svg"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "options_ui": {
    "page": "options/index.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "utils/logger.js",
      "db/store.js",
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "img/logo.svg",
    "default_title": "Favicon Packs"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "utils/logger.js",
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "shoelace/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{15fde5ed-825b-4934-bf7a-00e1b17258a9}"
    }
  }
}