Examine source code of Deep Marine

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Deep Marine",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(4, 65, 122)",
      "toolbar_text": "rgb(38, 220, 184)",
      "frame": "rgb(31, 68, 98)",
      "tab_background_text": "rgb(42, 195, 226)",
      "toolbar_field": "rgb(2, 38, 65)",
      "toolbar_field_text": "rgb(95, 249, 244)",
      "tab_line": "rgba(49, 143, 123, 0.8)",
      "popup": "rgb(8, 53, 85)",
      "popup_text": "rgb(172, 222, 239)",
      "tab_loading": "rgba(49, 143, 123, 0.8)"
    }
  }
}