Examine source code of Brave Dark

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Brave Dark",
  "theme": {
    "colors": {
      "toolbar": "#393939",
      "tab_line": "#393939",
      "tab_text": "#f4f4f4",
      "bookmark_text": "#ffffff",
      "frame": "#222222",
      "frame_inactive": "#4e4e4e",
      "tab_background_text": "#ffffff",
      "toolbar_field": "#222222",
      "toolbar_field_text": "#ffffff",
      "toolbar_field_text_focus": "#ffffff",
      "toolbar_field_focus": "#3c4043",
      "toolbar_field_border": "#222222",
      "toolbar_field_border_focus": "#884739",
      "toolbar_field_highlight": "#185abc",
      "toolbar_field_highlight_text": "#ffffff",
      "toolbar_field_separator": "#b2b5b7",
      "toolbar_text": "#ffffff",
      "toolbar_top_separator": "#393939",
      "toolbar_bottom_separator": "#393939",
      "toolbar_vertical_separator": "#393939",
      "popup": "#292a2d",
      "popup_text": "#ffffff",
      "popup_border": "#282828",
      "popup_highlight": "#5b5f61",
      "popup_highlight_text": "#ffffff",
      "tab_loading": "#d75526",
      "tab_selected": "#393939",
      "sidebar": "#161719",
      "sidebar_highlight": "#4b4c4f",
      "sidebar_highlight_text": "#ffffff",
      "sidebar_text": "#ffffff",
      "sidebar_border": "#3c4043",
      "button_background_active": "#525252",
      "button_background_hover": "#484848",
      "icons": "#ededed",
      "icons_attention": "#ff5000",
      "ntp_background": "#1e2127",
      "ntp_link": "#ffffff",
      "ntp_text": "#ffffff"
    }
  }
}