New Demo - Demo_Fonts_Using_pyglet - adding fonts to tkinter using pyglet (thanks Jason!)

DemoPrograms/Demo_Fonts_Using_pyglet.py

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+import pyglet
+import PySimpleGUI as sg
+
+"""
+    Demo - Using pyglet to get custom fonts into PySimpleGUI
+
+    Original code by @jason990420 
+
+    Copyright 2022 PySimpleGUI
+    
+    Font information:
+        Copyright (c) 2020, Walter E Stewart,
+        with Reserved Font Name Open Flame.
+        https://www.1001freefonts.com/open-flame.font
+        This Font Software is licensed under the SIL Open Font License, Version 1.1.
+        This license is copied below, and is also available with a FAQ at:
+        http://scripts.sil.org/OFL
+"""
+
+pyglet.font.add_file(r".\OpenFlame.ttf")
+
+font1 = ("Open Flame", 40)      # Note - use the font "face name" not the filename when specifying the font
+font2 = ("Courier New", 40)
+font3 = ("Helvetica", 40)
+text_string = "ABCDEFG abcdefg 1234567890"
+
+layout = [  [sg.Text(text_string, font=font1)],
+            [sg.Text(text_string, font=font2)],
+            [sg.Text(text_string, font=font3)]  ]
+
+window = sg.Window('Adding Fonts', layout)
+
+while True:
+    event, values = window.read()
+    if event == sg.WINDOW_CLOSED:
+        break
+
+window.close()