GTK L&F:The background color and foreground color of the TestBug menu are black

Testsuite name: Swing manual
Test name(s): Swing_JInternalFrame/Manual/InternalFrameDemo
Product(s) tested:OracleJDK13b25(64bit)/tonga-4.0.2-rc2
OS/architecture:ubuntu19.04-x64
option: -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel

Actual behavior:
1.The background color and foreground color of the TestBug menu are black.Refer to InternalFrameDemo-incorrect1.jpg
2.No such issue without option.Refer to nooption-InternalFrameDemo1.jpg and nooption-InternalFrameDemo2.jpg
3.On ubuntu18.04-x64/OracleJDK13b25 with the same option,there is no such issue. Refer to ubuntu18.04-InternalFrameDemo.jpg