Qt warning about missing font family about slicer HOT 3 OPEN

Warning is reported from the function QCoreTextFontDatabase::populateFamilyAliases implemented in qcoretextfontdatabase.mm.
See https://github.com/qt/qtbase/blob/v5.15.2/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm#L143-L191

This could likely be disabled using something like this ...

#if defined(Q_OS_MACOS)
# See https://github.com/Slicer/Slicer/issues/7261
QLoggingCategory::setFilterRules("qt.qpa.fonts=true");
#endif

and/or by setting env. variable or qt. conf setting.

See https://doc.qt.io/qt-5/qloggingcategory.html#setFilterRules

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There have been similar error reports:

• mpogue2/SquareDesk#625
• SCIInstitute/ShapeWorks#1903

Removing font family information may resolve the issue.

The only font family information mentioned in this .ui file: Modules\Loadable\Texts\Widgets\Resources\UI\qMRMLTextWidget.ui

@pieper can you test if removing these 3 lines makes the warning disappear?

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I tried taking out those lines, and a few other places where Courier is mentioned but no luck, the message still appears.

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