GridLayout in Kivy - centering a widget / widget nesting
After testing out the basics of Kivy, I wanted to center my widget.
Well, it wasn't (the same logic as a Tkinter grid for example.
I found the answer in a Tech with Tim video :
• Kivy Tutorial #3 - Creating Buttons and Tr...
But it actually opens way more things than just centering. Learning the different layouts and nesting them together allows you to make more complex things that I hope to apply soon.