Learning-Kivy

There are a number of hard issues to wrap my brain around when learning Kivy for an app project I am working on. For the instances I resort to asking stackoverflow, I wanted to provide the functional code solutions to those questions, so I can help others (including future me, who will likely forget details from time to time):

• Zooming and Panning: https://stackoverflow.com/questions/49807052/kivy-scroll-to-zoom
• Progress Bar: https://stackoverflow.com/questions/62922185/kivy-progress-bar-value-updates-but-progress-bar-does-not