Examine source code of zbetsclub

{
  "name": "Red orange",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Red-orange-and-yellow-brush-strokes-1024x692.jpeg"
    },
    "colors": {
      "frame": "rgba(255, 0, 0, 1)",
      "tab_background_text": "rgba(237, 91, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a1d1f25-5710-445d-902c-e44d9e93df79}"
    }
  }
}