Examine source code of Garden wall

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Garden wall",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(226, 231, 240)",
      "toolbar_text": "rgb(68, 61, 130)",
      "frame": "rgb(59, 55, 103)",
      "tab_background_text": "rgb(245, 244, 242)",
      "toolbar_field": "rgb(254, 254, 254)",
      "toolbar_field_text": "rgb(42, 35, 71)",
      "tab_line": "rgb(204, 192, 232)",
      "popup": "rgb(226, 231, 240)",
      "popup_text": "rgb(45, 61, 55)",
      "tab_loading": "rgb(204, 192, 232)"
    }
  }
}