
                    For datavisualization, we pick up the best solutions provided by github life savers.
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After fiddling with this for a little while I found a way to fix the example It is very easy and I don't understand why it is not posted anywhere 

react chartjs 2 Mix chart, labels.slice is not a function error

got the same issue solve it by change the chart.js: ^2.9.4 in your package.json
then delete node modules folder then in terminal run npm install . 

react chartjs 2 Defaults creating error

Workaround is to mock out the chart for enzyme mounting (or just use a shallow wrapper) 

react chartjs 2 Testing with jest / enzyme / jsdom - Failed to create chart: can't acquire context from the given item

OK it's DONE!
Please get a new PySimpleGUI.py file the Dev-active branch Is it possible for the form layouts to be updated on the go?
Eg 

PySimpleGUI Updating form layouts

Here's some code that does a simple toggle button It does it without the relief settings using only colors 

PySimpleGUI Simple button state On/Off - tkinter way shown but same result in PySimpleGUI possible ?

This one took a while to get around to doing but it's COMPLETE released to PyPI and ready to use 