Examine source code of RustBot Cred Application

{
  "manifest_version": 3,
  "name": "RustBot Panel - Steam Linker",
  "version": "1.1.1",
  "description": "Links your Steam account with RustBot Panel for Rust+ notifications. No passwords are stored.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://companion-rust.facepunch.com/*",
    "http://localhost/*",
    "http://127.0.0.1/*",
    "*://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://companion-rust.facepunch.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "inject.js"
      ],
      "matches": [
        "https://companion-rust.facepunch.com/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "rustbot-panel-steam-linker@rustbot.local",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ],
        "optional": []
      }
    }
  }
}