[macos11] JTabbedPane selected tab text is barely legible

on macOS 11 (bigsur) beta, using the Swing Aqua Look and Feel,
the text of the selected JTabbedPane tab title text is just a light gray
outline of white text on a white background.
See attached image which shows the problem in two places.

The macOS 11 design inverted from dark background / light text to light background / dark text, and while the bezel / background artwork is under system framework control (JRS).

Previously the background was blue, so white filled text for the selected
title was correct and perfectly legible.