Examine source code of Dark Fox Theme (Updated)

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Fox Theme (Updated)",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(43, 42, 51)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(28, 27, 34)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(28, 27, 34)",
      "toolbar_field_text": "rgb(172, 170, 187)",
      "tab_line": "rgb(43, 42, 51)",
      "popup": "rgb(28, 27, 34)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(66, 63, 80)",
      "button_background_hover": "rgb(66, 63, 80)",
      "frame_inactive": "rgb(28, 27, 34)",
      "icons_attention": "rgb(172, 170, 187)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(19, 18, 23)",
      "ntp_text": "rgb(172, 170, 187)",
      "popup_border": "rgb(28, 27, 34)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(19, 18, 23)",
      "sidebar_border": "rgb(43, 42, 51)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(28, 27, 34)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(43, 42, 51)",
      "tab_selected": "rgb(52, 50, 63)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(43, 42, 51)",
      "toolbar_field_border_focus": "rgb(172, 170, 187)",
      "toolbar_field_border": "rgb(28, 27, 34)",
      "toolbar_field_focus": "rgb(28, 27, 34)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(172, 170, 187)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(28, 27, 34)",
      "toolbar_vertical_separator": "rgb(255, 255, 255)",
      "tab_loading": "rgb(43, 42, 51)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9a94ab87-98ad-483d-83d4-71a7ba12b9a5}"
    }
  }
}