Examine source code of spacefull by bobomacleod

{
  "name": "spacefull by bobomacleod",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "colorfull.jpg"
    },
    "colors": {
      "toolbar": "rgba(0, 41, 99, 1)",
      "toolbar_field": "rgba(41, 57, 117, 1)",
      "toolbar_field_text": "rgba(171, 173, 201, 1)",
      "frame": "rgba(16, 54, 135, 1)",
      "tab_background_text": "rgba(237, 230, 233, 1)",
      "bookmark_text": "rgba(199, 204, 227, 1)"
    }
  }
}