Examine source code of Seamless Light

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Seamless Light",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-020-48c286b34e53380d46803c2e5603a5b2.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(234, 237, 227)",
      "toolbar_text": "rgb(70, 69, 71)",
      "frame": "rgb(239, 241, 234)",
      "tab_background_text": "rgb(116, 116, 119)",
      "toolbar_field": "rgb(239, 241, 234)",
      "toolbar_field_text": "rgb(70, 69, 71)",
      "tab_line": "rgba(70, 69, 71, 0)",
      "popup": "rgb(239, 241, 234)",
      "popup_text": "rgb(70, 69, 71)",
      "popup_border": "rgba(70, 69, 71, 0)",
      "sidebar": "rgb(234, 237, 227)",
      "tab_loading": "rgb(234, 237, 227)",
      "toolbar_bottom_separator": "rgba(234, 237, 227, 0)",
      "toolbar_field_border": "rgba(234, 237, 227, 0)",
      "toolbar_top_separator": "rgba(234, 237, 227, 0)"
    }
  }
}