Examine source code of Jumping Dolphins

{
  "name": "Jumping  Dolphins",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(148, 61, 87, 1)",
      "tab_background_text": "rgba(255, 255, 229, 1)",
      "toolbar": "rgba(150, 60, 86, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(148, 59, 84, 0.07)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  }
}