Examine source code of pink cloud

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "pink clouds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(253, 206, 255)",
      "toolbar_text": "rgb(201, 39, 249)",
      "frame": "rgb(229, 142, 255)",
      "tab_background_text": "rgb(120, 0, 157)",
      "toolbar_field": "rgb(235, 138, 255)",
      "toolbar_field_text": "rgb(128, 0, 168)",
      "tab_line": "rgb(203, 0, 255)",
      "popup": "rgb(237, 176, 255)",
      "popup_text": "rgb(193, 45, 241)",
      "tab_loading": "rgb(203, 0, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{43fb1d71-a9f5-447b-aee6-d982f151b446}"
    }
  }
}