Examine source code of karma

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "karma",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(46, 37, 56, 0.45)",
      "toolbar_text": "rgb(253, 186, 230)",
      "frame": "rgb(130, 239, 255)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(236, 224, 227)",
      "toolbar_field_text": "rgb(185, 150, 226)",
      "tab_line": "rgb(130, 239, 255)",
      "popup": "rgba(46, 37, 56, 0.65)",
      "popup_text": "rgb(253, 186, 230)",
      "ntp_background": "rgba(46, 37, 56, 0.65)",
      "tab_loading": "rgb(130, 239, 255)"
    }
  }
}