Examine source code of spider verse

{
  "name": "spider verse",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "descarga (9).jpg"
    },
    "colors": {
      "frame": "rgba(24, 3, 87, 1)",
      "tab_background_text": "rgba(199, 34, 199, 1)",
      "toolbar": "rgba(199, 62, 62, 0)",
      "bookmark_text": "rgba(194, 45, 85, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(74, 85, 171, 1)"
    }
  }
}