Examine source code of SheevTV Rewards

{
  "manifest_version": 3,
  "name": "SheevTV Rewards",
  "version": "1.1",
  "permissions": [],
  "host_permissions": [
    "https://www.twitch.tv/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.twitch.tv/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "overlay.css"
      ]
    }
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "kofi_symbol.png",
        "twitch_flat_purple.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "sheevtv@scubasheeves.com",
      "strict_min_version": "109.0"
    }
  }
}