Examine source code of winter snow mountain

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "mountain",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(7, 23, 34, 0.53)",
      "toolbar_text": "rgb(191, 191, 211)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(245, 245, 252)",
      "toolbar_field": "rgba(63, 62, 116, 0.47)",
      "toolbar_field_text": "rgb(166, 189, 238)",
      "tab_line": "rgb(73, 61, 241)",
      "popup": "rgb(136, 157, 198)",
      "popup_text": "rgb(38, 38, 45)",
      "button_background_active": "rgb(73, 84, 100)",
      "icons": "rgb(145, 203, 247)",
      "ntp_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(73, 61, 241)"
    }
  }
}