Examine source code of Spider Man Milles

{
  "name": "Dragon Ball",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "980845.jpg"
    },
    "colors": {
      "frame": "rgba(3, 4, 5, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(36, 30, 30, 1)",
      "bookmark_text": "rgba(209, 25, 25, 1)",
      "toolbar_field": "rgba(65, 38, 237, 1)",
      "toolbar_field_text": "rgba(214, 201, 201, 1)"
    }
  }
}