QComboBox Selected Entry Color is incorrect on macOS

The accent color for entries for a QComboBox is much lighter than the native accent color on macOS. This does not affect a QComboBox that is set to editable.

The issue is similar to https://bugreports.qt.io/browse/QTBUG-28443 and the screenshot reflects the bug with the discrepancy in color.

If needed, I can upload a test file. As a reference, note that Qt Creator (built with 5.12) reflects this issue with QComboBox.

The fix is probably similar to https://bugreports.qt.io/browse/QTBUG-70676 or the use of controlAccentColor, which available in macOS Mojave. It looks like QComboBox is using the user's highlight color instead of the user's accent color.