Examine source code of Silk Road

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Silk Road",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-034-e0dfa84411058d2e5627f19f1ea501ca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(192, 151, 147)",
      "toolbar_text": "rgb(84, 32, 27)",
      "frame": "rgb(201, 167, 164)",
      "tab_background_text": "rgb(160, 120, 116)",
      "toolbar_field": "rgba(201, 167, 164, 0.61)",
      "toolbar_field_text": "rgb(84, 32, 27)",
      "tab_line": "rgba(232, 213, 212, 0.61)",
      "popup": "rgba(201, 167, 164, 0.61)",
      "popup_text": "rgb(132, 79, 74)",
      "tab_loading": "rgba(232, 213, 212, 0.61)"
    }
  }
}