Not all material properties are documented

Only a handful of properties are documented . QtCreator autocomplete shows us users more like:

• Material.primaryColor
• Material.primaryTextColor
• Material.primaryHighlightedTextColor
• Material.secondaryTextColor
• Material.backgroundDimColor
• Material.iconColor

https://doc.qt.io/qt-6/qtquickcontrols-material.html

Note that they are useful when creating custom controls that should fit the style of the material controls