ButtonandbuttontextstillinvisibleonMac

I've just came across PySimpleGUI and it's a life saver for me!

However running the PySimpleGUI.py demos, I'm still experiencing the invisible button text issue, like the one https://github.com/PySimpleGUI/PySimpleGUI/issues/70

Running using PyCharm, under macos mojave. Tried ChangeLookAndFeel to other than "GreenTan", but it seems Mac is not supported for changing the colour scheme?

No problem while running under Win10. Unfortunately most of my python development is doing on my Mac.

(Forgive my ignorance if I posted this wrongly. I'm still new using github)

-Shah-