Examine source code of Ashidori

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "version": "0.4.0",
  "manifest_version": 2,
  "icons": {
    "16": "icon16.14f4aa74.png",
    "48": "icon48.e32b2316.png",
    "128": "icon128.d3358948.png"
  },
  "options_ui": {
    "page": "options.a5a6c892.html"
  },
  "browser_action": {
    "default_popup": "popup.41078dc3.html",
    "default_title": "__MSG_appName__"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.crunchyroll.com/watch/**"
      ],
      "js": [
        "video.71b7ffad.js"
      ],
      "css": []
    },
    {
      "matches": [
        "*://*.netflix.com/watch/*"
      ],
      "js": [
        "video.13da3d4e.js"
      ],
      "css": []
    },
    {
      "matches": [
        "*://*.hidive.com/stream/**"
      ],
      "js": [
        "video.1544438b.js"
      ],
      "css": []
    }
  ],
  "web_accessible_resources": [
    "up_/static/scripts/inject_netflix.js",
    "up_/static/icons/icon128_border.png"
  ],
  "background": {
    "page": "background.45bce3d6.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{de146335-43f9-46bc-8c2d-51aa82bab4f5}"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "webNavigation",
    "notifications",
    "identity",
    "*://*.crunchyroll.com/*",
    "*://*.netflix.com/*",
    "*://kitsu.io/api/*",
    "https://myanimelist.net/v1/oauth2/*",
    "https://api.myanimelist.net/v2/*"
  ]
}