Steps to reproduce the issue -
1. Launch J2DDemo with metal pipeline - it launches by default on integrated graphics card
2. Launch SwingSet2 with OpenGL pipeline -- this will result in force select of discrete graphics card

After step 2 - the global controls panel of J2DDemo has a UI anomaly - Group heading text is overlapped by border - hence text appears as if it is strike out.
(See expected vs bug screenshots)

Same issue is seen when J2DDemo is launched on discrete graphics card and a switch happens to integrated graphics card.

Tested on macOS 10.15.6 - on dual graphics card system on Retina display.