Examine source code of Maple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Maple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-045-3e6898966e6ccdc87f80d23d4e7a6a49.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(219, 220, 219, 0.64)",
      "toolbar_text": "rgb(91, 94, 84)",
      "frame": "rgb(201, 197, 197)",
      "tab_background_text": "rgb(239, 216, 7)",
      "toolbar_field": "rgba(234, 235, 231, 0.7)",
      "toolbar_field_text": "rgb(58, 147, 156)",
      "tab_line": "rgb(245, 75, 41)",
      "popup": "rgb(242, 250, 242)",
      "popup_text": "rgb(58, 147, 156)",
      "tab_loading": "rgb(245, 75, 41)"
    }
  }
}