Examine source code of Coffee

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Coffee",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(160, 140, 96)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(113, 91, 61)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(229, 223, 202)",
      "toolbar_field_text": "rgb(43, 43, 43)",
      "tab_line": "rgb(224, 215, 183)",
      "popup": "rgb(229, 223, 202)",
      "popup_text": "rgb(43, 43, 43)",
      "button_background_active": "rgb(138, 118, 74)",
      "button_background_hover": "rgb(174, 154, 109)",
      "frame_inactive": "rgb(95, 74, 46)",
      "ntp_background": "rgb(153, 134, 94)",
      "popup_highlight": "rgb(174, 154, 109)",
      "sidebar_border": "rgb(160, 140, 96)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(160, 140, 96)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(141, 122, 81)",
      "toolbar_bottom_separator": "rgb(160, 140, 96)",
      "toolbar_field_border_focus": "rgb(229, 223, 202)",
      "toolbar_field_border": "rgb(229, 223, 202)",
      "toolbar_field_separator": "rgb(224, 215, 183)",
      "toolbar_top_separator": "rgb(160, 140, 96)",
      "tab_loading": "rgb(224, 215, 183)"
    }
  }
}