Examine source code of Green quad

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Green quad",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-005-f5f3cf677b1f132c75ddc7bd319dd1fc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(12, 18, 21)",
      "toolbar_text": "rgb(15, 139, 35)",
      "frame": "rgb(28, 46, 32)",
      "tab_background_text": "rgb(194, 206, 196)",
      "toolbar_field": "rgb(9, 63, 15)",
      "toolbar_field_text": "rgb(239, 240, 252)",
      "tab_line": "rgb(1, 2, 13)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(23, 130, 38)",
      "tab_loading": "rgb(1, 2, 13)"
    }
  }
}