My first problem is with GIMP version 2.8.16. The text color picker tool has begun to freeze on my Mac (Sierra 10.12.13). I open the color dialog and select the picker tool and the window stays on the screen and I cannot click on any colors in the
picture. I have to click "cancel" two or three times to get the dialog to close.
Today I downloaded version 2.8.20. There is no color picker in the font dialog and the color picker tool does not seem to want to select any colors either.