Examine source code of Subtle Water Tribe

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Water Tribe",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-012-1e971c5fbb8dec3acbd76dd6c6819de9.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(9, 42, 120)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(174, 222, 255)",
      "tab_background_text": "rgb(15, 87, 255)",
      "toolbar_field": "rgb(203, 235, 255)",
      "toolbar_field_text": "rgb(103, 109, 207)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  }
}