Examine source code of Animet Auto

{
  "manifest_version": 2,
  "name": "AnimetAuto",
  "version": "2.15",
  "description": "Automatically choose Server, mark current eposide and turn off background light on Animet.net",
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "Animet Auto",
    "default_popup": "popup/settings.html"
  },
  "options_ui": {
    "page": "popup/settings.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ae22f81b-b622-4937-bbe3-c0eb323a745e}"
    }
  },
  "icons": {
    "48": "icons/icon-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "AnimetAuto.js"
      ]
    }
  ]
}