Examine source code of Minimal Material Dark Grey

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Minimal Dark Grey",
  "browser_specific_settings": {
    "gecko": {
      "id": "minimaldark@xnin360.com"
    }
  },
  "theme": {
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(23, 38, 38)",
      "toolbar_text": "rgb(202, 211, 245)",
      "frame": "rgb(33, 33, 33)",
      "tab_background_text": "rgb(230, 230, 230)",
      "toolbar_field": "rgb(34, 34, 34)",
      "toolbar_field_text": "rgb(202, 211, 245)",
      "tab_line": "rgb(93, 134, 169)",
      "popup": "rgb(34, 34, 34)",
      "popup_text": "rgb(219, 219, 219)",
      "button_background_active": "rgb(110, 115, 141)",
      "frame_inactive": "rgb(24, 25, 38)",
      "ntp_background": "rgb(33, 33, 33)",
      "ntp_text": "rgb(202, 211, 245)",
      "popup_border": "rgb(68, 68, 68)",
      "popup_highlight_text": "rgb(202, 211, 245)",
      "popup_highlight": "rgb(110, 115, 141)",
      "sidebar_border": "rgb(138, 173, 244)",
      "sidebar_highlight_text": "rgb(24, 25, 38)",
      "sidebar_highlight": "rgb(138, 173, 244)",
      "sidebar_text": "rgb(202, 211, 245)",
      "sidebar": "rgb(36, 39, 58)",
      "tab_background_separator": "rgb(138, 173, 244)",
      "tab_loading": "rgb(138, 173, 244)",
      "tab_selected": "rgb(36, 39, 58)",
      "tab_text": "rgb(202, 211, 245)",
      "toolbar_bottom_separator": "rgb(36, 39, 58)",
      "toolbar_field_border_focus": "rgb(138, 173, 244)",
      "toolbar_field_border": "rgb(36, 39, 58)",
      "toolbar_field_focus": "rgb(36, 39, 58)",
      "toolbar_field_highlight_text": "rgb(36, 39, 58)",
      "toolbar_field_highlight": "rgb(138, 173, 244)",
      "toolbar_vertical_separator": "rgb(138, 173, 244)"
    }
  }
}