Examine source code of Beyond The Forge

{
  "name": "Beyond The Forge",
  "version": "1.0.3",
  "manifest_version": 2,
  "description": "Integrate D&D Beyond with The Forge's Bazaar.",
  "permissions": [
    "cookies",
    "*://*.dndbeyond.com/*",
    "*://*.forge-vtt.com/"
  ],
  "icons": {
    "32": "images/icon32.png",
    "72": "images/icon72.png",
    "512": "images/icon512.png"
  },
  "background": {
    "persistent": true,
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.dndbeyond.com/*"
      ],
      "css": [
        "libs/css/alertify.css",
        "libs/css/alertify-themes/default.css"
      ],
      "js": [
        "libs/alertify.min.js",
        "src/dndbeyond.js"
      ],
      "all_frames": true
    },
    {
      "matches": [
        "*://*.forge-vtt.com/*"
      ],
      "js": [
        "src/forge.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1134be8-ce6d-45c8-9fcb-f4eccd46e656}"
    }
  }
}