diff --git a/DemoPrograms/Demo_Date_Chooser.py b/DemoPrograms/Demo_Date_Chooser.py
index 07bdc192..fb5ecd90 100644
--- a/DemoPrograms/Demo_Date_Chooser.py
+++ b/DemoPrograms/Demo_Date_Chooser.py
@@ -13,6 +13,7 @@ import itertools
     Copyright 2020 PySimpleGUI
 """
 
+sg.theme('Dark Red')
 
 def popup_get_date(start_mon=None, start_day=None, start_year=None, begin_at_sunday_plus=0, no_titlebar=True, title='Choose Date', keep_on_top=True, location=(None, None), close_when_chosen=False, icon=None, locale=None, month_names=None, day_abbreviations=None):
     """