The PySimpleGUI Call Reference
Here you will find the details for all Elements, Objects, and Functions that are available to you. If you want to use a complex element and don't understand the parameters, then this is the right place to come. For every element, you're shown the parameters used to create it, any properties it has, and all methods available to call.
This documentation is created using each port's respective python file. This means that some of the calls are different, might not exist at all, or there may be more methods/functions for the other PySimpleGUI ports.
The default port that PySimpleGUI extends is Tkinter.