Examine source code of Blue Punch

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Punch",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(6, 70, 105)",
      "toolbar_text": "rgb(1, 255, 236)",
      "frame": "rgb(103, 87, 165)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(202, 240, 255)",
      "toolbar_field_text": "rgb(123, 127, 204)",
      "tab_line": "rgb(167, 15, 194)",
      "popup": "rgb(213, 255, 250)",
      "popup_text": "rgb(37, 74, 169)",
      "tab_loading": "rgb(167, 15, 194)"
    }
  }
}