Examine source code of Purple Gloomy Clouds

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Purple Gloomy Clouds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(33, 4, 43, 0.57)",
      "toolbar_text": "rgb(231, 215, 238)",
      "frame": "rgb(78, 35, 91)",
      "tab_background_text": "rgb(189, 157, 193)",
      "toolbar_field": "rgba(135, 65, 123, 0.63)",
      "toolbar_field_text": "rgb(255, 200, 251)",
      "tab_line": "rgb(255, 212, 244)",
      "popup": "rgb(113, 38, 101)",
      "popup_text": "rgb(231, 215, 238)",
      "ntp_background": "rgb(25, 7, 34)",
      "tab_loading": "rgb(255, 212, 244)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2cd663bd-b2e8-4d88-9518-5365ee453dd4}"
    }
  }
}