Examine source code of Light Blue Hello Kitty

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Light Blue Hello Kitty",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(183, 200, 197)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(150, 143, 150)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(249, 245, 249)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "popup_highlight": "rgb(34, 25, 77)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{37f9a6da-e694-4f95-9f59-fa25d2c5d3e4}"
    }
  }
}