Examine source code of Pastel Sky

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pastel Sky",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(242, 220, 249)",
      "toolbar_text": "rgb(183, 94, 176)",
      "frame": "rgb(252, 183, 241)",
      "tab_background_text": "rgb(217, 128, 210)",
      "toolbar_field": "rgba(255, 255, 255, 0.5)",
      "toolbar_field_text": "rgb(217, 128, 210)",
      "tab_line": "rgb(252, 158, 226)",
      "popup": "rgb(230, 133, 203)",
      "popup_text": "rgb(251, 173, 229)",
      "tab_loading": "rgb(252, 158, 226)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fd86d7d2-fe9b-4a29-b39b-35a60e65403a}"
    }
  }
}