TreeView.QuartzShading Property
If set to true then the selection will be shaded when running on MacOS X Mach-O targets.
QuartzShading as Boolean {Read and Write}
Remarks

To the left there is no Quartz Shading in the selection, while to the right Quartz Shading is used.This property has no effect if any of the following is true:The running platform is not MacOS X Mach-O.
The selection is not in Highlight full row mode.
Please note that if QuartzShading is done then the SelectionColor property will be ignored.
See Also
TreeView Control