Examine source code of NatureWalkz

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "NatureWalkz",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(37, 43, 38, 0.47)",
      "toolbar_text": "rgb(156, 192, 146)",
      "frame": "rgb(37, 23, 6)",
      "tab_background_text": "rgb(211, 247, 200)",
      "toolbar_field": "rgba(156, 192, 146, 0.29)",
      "toolbar_field_text": "rgb(188, 229, 176)",
      "tab_line": "rgb(156, 192, 146)",
      "popup": "rgb(211, 247, 200)",
      "popup_text": "rgb(37, 23, 6)",
      "tab_loading": "rgb(156, 192, 146)"
    }
  }
}