Examine source code of RE in Stryd

{
  "manifest_version": 2,
  "name": "RE in Stryd",
  "version": "1.8.2",
  "description": "Adds RE and CP to Stryd Power Center",
  "icons": {
    "48": "images/icon48.png",
    "96": "images/icon96.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": "images/icon32.png",
    "default_title": "RE in Stryd",
    "default_popup": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.stryd.com/powercenter*"
      ],
      "all_frames": true,
      "js": [
        "scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f50f1836-6640-4576-aaee-7404b2f8ca0b}"
    }
  }
}