Examine source code of Snowy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Snowy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(197, 203, 159)",
      "toolbar_text": "rgb(12, 15, 139)",
      "frame": "rgb(41, 44, 16)",
      "tab_background_text": "rgb(22, 71, 81)",
      "toolbar_field": "rgba(218, 229, 255, 0.46)",
      "toolbar_field_text": "rgb(5, 5, 31)",
      "tab_line": "rgb(21, 104, 161)",
      "popup": "rgb(243, 255, 248)",
      "popup_text": "rgb(23, 23, 211)",
      "tab_loading": "rgb(21, 104, 161)"
    }
  }
}