Examine source code of Qiyu Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Qiyu Dark",
  "theme": {
    "colors": {
      "toolbar": "#5a5a5a",
      "tab_line": "#5a5a5a",
      "tab_text": "#fafafa",
      "bookmark_text": "#f0f0f0",
      "frame": "#2d2d2d",
      "frame_inactive": "#969696",
      "tab_background_text": "#ffffff",
      "toolbar_field": "#494949",
      "toolbar_field_text": "#ffffff",
      "toolbar_field_text_focus": "#ffffff",
      "toolbar_field_focus": "#494949",
      "toolbar_field_border": "#494949",
      "toolbar_field_border_focus": "#494949",
      "toolbar_field_highlight": "#0078d7",
      "toolbar_field_highlight_text": "#ffffff",
      "toolbar_field_separator": "#5a5a5a",
      "toolbar_text": "#f0f0f0",
      "toolbar_top_separator": "#5a5a5a",
      "toolbar_bottom_separator": "#5a5a5a",
      "toolbar_vertical_separator": "#5a5a5a",
      "tab_background_separator": "#b8b9ba",
      "popup": "#5a5a5a",
      "popup_text": "#ffffff",
      "popup_border": "#3c4043",
      "popup_highlight": "#0078d7",
      "popup_highlight_text": "#ffffff",
      "tab_loading": "#a6a6a6",
      "tab_selected": "#5a5a5a",
      "sidebar": "#2d2d2d",
      "sidebar_highlight": "#489afb",
      "sidebar_highlight_text": "#ffffff",
      "sidebar_text": "#f0f0f0",
      "sidebar_border": "#3c4043",
      "button_background_active": "#666666",
      "button_background_hover": "#7a7a7a",
      "icons": "#ffffff",
      "icons_attention": "#ffd200",
      "ntp_background": "#323232",
      "ntp_link": "#d2d2d2",
      "ntp_text": "#d2d2d2"
    }
  }
}