Examine source code of Isla de corales

{
  "name": "Isla de corales",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "pack_icon.png"
    },
    "colors": {
      "frame": "rgba(53, 98, 196, 1)",
      "tab_background_text": "rgba(163, 72, 72, 1)",
      "toolbar": "rgba(161, 151, 63, 1)",
      "bookmark_text": "rgba(54, 163, 86, 1)",
      "toolbar_field": "rgba(36, 135, 171, 1)",
      "toolbar_field_text": "rgba(130, 45, 45, 1)"
    }
  }
}