Examine source code of beige aesthetic

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "beige",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-019-7ce748211c61f9059493d4c4378e8a74.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(166, 146, 112)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(188, 169, 138)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(166, 146, 112)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(166, 146, 112)",
      "popup": "rgb(166, 146, 112)",
      "popup_text": "rgb(254, 254, 254)",
      "ntp_background": "rgb(187, 163, 122)",
      "ntp_text": "rgb(166, 146, 112)",
      "sidebar_border": "rgb(166, 146, 112)",
      "toolbar_bottom_separator": "rgb(166, 146, 112)",
      "tab_loading": "rgb(166, 146, 112)"
    }
  }
}