Menu: View->Curvatures->Surfaces
Draw a contour fill of the curvature of all visible surfaaces surfaces on each point and a scale of colors to represent its values
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Also the principal curvature directions can be shown as unitary vectors.
Menu: View->Curvatures->Curvatures→Curves>Lines
Draw by colors the curvature (the inverse of curvature radius) of all visible curves.