Selection in AIS_PointCloud

Hello,

I used "AIS_PointCloud" to load point cloud, in this class I have added a selection method that colors the points of the region selected in red.
The points are colored but if the cloud remains selected or we move the mouse over, we can not distinguish the red color because of the color selection or of highlighting.

Is there a possibility to color or highlight only the bounding box after the coloration of points

I use Opencascade 6.8.0

thanks