Examine source code of Gray snowy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "snowy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(33, 52, 62, 0.46)",
      "toolbar_text": "rgb(248, 251, 255)",
      "frame": "rgb(0, 22, 54)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgba(60, 81, 93, 0.57)",
      "toolbar_field_text": "rgb(208, 247, 255)",
      "tab_line": "rgb(178, 226, 231)",
      "popup": "rgba(73, 96, 125, 0.86)",
      "popup_text": "rgb(211, 230, 252)",
      "button_background_hover": "rgba(107, 140, 160, 0.94)",
      "icons": "rgba(209, 235, 255, 0.94)",
      "ntp_background": "rgba(81, 97, 114, 0.94)",
      "ntp_text": "rgba(212, 228, 248, 0.94)",
      "popup_border": "rgba(128, 203, 248, 0.94)",
      "tab_loading": "rgb(178, 226, 231)"
    }
  }
}