Examine source code of Minimal Basic

{
  "manifest_version": 2,
  "version": "0.5",
  "name": "Minimal Basic",
  "theme": {
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(53,53,53)",
      "toolbar_text": "rgb(153,153,153)",
      "frame": "rgb(34,34,34)",
      "tab_background_text": "rgb(85,85,85)",
      "toolbar_field": "rgb(85,85,85)",
      "toolbar_field_text": "rgb(223,223,223)",
      "tab_line": "rgba(245,124,48,0)",
      "popup": "rgb(51,51,51)",
      "popup_text": "rgb(177,177,177)",
      "button_background_active": "rgb(74,74,74)",
      "button_background_hover": "rgba(64,64,64,0.85)",
      "frame_inactive": "rgb(53,53,53)",
      "icons_attention": "rgb(192,192,192)",
      "icons": "rgb(126,126,126)",
      "ntp_background": "rgb(53,53,53)",
      "ntp_text": "rgb(154,154,154)",
      "popup_border": "rgb(53,53,53)",
      "popup_highlight_text": "rgb(185,185,185)",
      "popup_highlight": "rgb(111,111,111)",
      "sidebar_border": "rgba(144,144,144,0.53)",
      "sidebar_highlight_text": "rgb(52,52,52)",
      "sidebar_highlight": "rgb(228,228,228)",
      "sidebar_text": "rgb(194,194,194)",
      "sidebar": "rgb(52,52,52)",
      "tab_background_separator": "rgb(200,200,200)",
      "tab_loading": "rgb(211,211,211)",
      "tab_selected": "rgb(53,53,53)",
      "tab_text": "rgba(200,200,200,0.93)",
      "toolbar_bottom_separator": "rgb(53,53,53)",
      "toolbar_field_border_focus": "rgba(75,75,75,0.98)",
      "toolbar_field_border": "rgba(255,0,0,0)",
      "toolbar_field_focus": "rgba(75,75,75,0.98)",
      "toolbar_field_highlight_text": "rgb(75,75,75)",
      "toolbar_field_highlight": "rgb(175,175,175)",
      "toolbar_field_separator": "rgb(182,182,182)",
      "toolbar_field_text_focus": "rgb(200,200,200)",
      "toolbar_top_separator": "rgb(53,53,53)",
      "toolbar_vertical_separator": "rgb(158,158,158)"
    }
  }
}