Examine source code of macOS Mojave Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Mojave Dark",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(60, 60, 60)",
      "toolbar_text": "rgb(250, 250, 250)",
      "frame": "rgb(60, 60, 60)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(104, 104, 104)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(0, 0, 0, 0)",
      "popup": "rgb(60, 60, 60)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(104, 104, 104)",
      "button_background_hover": "rgb(60, 60, 60)",
      "icons_attention": "rgb(250, 250, 250)",
      "icons": "rgba(250, 250, 250, 0.99)",
      "ntp_background": "rgb(32, 32, 32)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(99, 99, 99, 0.5)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgba(30, 30, 30, 0.5)",
      "sidebar_border": "rgb(0, 0, 0)",
      "sidebar_highlight": "rgb(76, 77, 79)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(51, 52, 54)",
      "tab_loading": "rgb(255, 255, 255)",
      "tab_selected": "rgb(104, 104, 104)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "toolbar_field_border_focus": "rgba(127, 127, 127, 0.75)",
      "toolbar_field_border": "rgba(121, 121, 121, 0.75)"
    }
  }
}