Examine source code of Moy.Design

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "moy@moy.design"
    }
  },
  "name": "Moy.Design",
  "description": "Makes web pages lightweight, more readable and more user-friendly.",
  "version": "2.3.0",
  "icons": {
    "128": "res/icon.png"
  },
  "page_action": {
    "default_icon": "res/icon.png",
    "default_title": "Moy.Design"
  },
  "background": {
    "scripts": [
      "lib/browser-polyfill.min.js",
      "lib/jquery.slim.min.js",
      "lib/js-yaml.js",
      "lib/mustache.js",
      "src/moyparser.js",
      "src/moytemplate.js",
      "src/bg.js"
    ]
  },
  "options_ui": {
    "page": "src/settings.html",
    "open_in_tab": true,
    "browser_style": false
  },
  "permissions": [
    "*://*/*",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "tabs",
    "webNavigation"
  ],
  "web_accessible_resources": [
    "src/frame.html",
    "src/settings.html",
    "src/editor.html"
  ]
}