Examine source code of WebOptimizer

{
  "manifest_version": 2,
  "name": "__MSG_appname__",
  "version": "1.1.1",
  "description": "__MSG_description__",
  "homepage_url": "https://github.com/filecxx/WebOptimizer",
  "default_locale": "en",
  "icons": {
    "128": "icons/icon.png"
  },
  "background": {
    "scripts": [
      "config.js",
      "libs/functions.js",
      "background/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "config.js",
        "libs/functions.js",
        "content/content_injector.js",
        "content/content_element_selector.js",
        "content/content_auto_click.js",
        "content/content_replace_words.js",
        "content/content.js"
      ],
      "match_about_blank": true,
      "matches": [
        "http://*/*",
        "https://*/*",
        "ftp://*/*",
        "file:///*"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "config.js",
    "icons/*",
    "content/*",
    "icons/*",
    "images/*",
    "libs/*",
    "libs/*/*"
  ],
  "permissions": [
    "tabs",
    "contextMenus",
    "storage",
    "privacy",
    "contentSettings",
    "browserSettings",
    "webNavigation",
    "<all_urls>",
    "*://*/*",
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1ded3ce4-0cf3-44a0-bedf-5eafcafa6021}"
    }
  }
}