The VSINTERSECTIONCOLOR variable stores the tint of intersection polylines in the visual style for the current viewport when it is set to 2D Wireframe. Value 0 defines a color ByBlock, value 256 defines a color ByLayer, value 257 defines a color ByEntity, values 1 to 255 define the ACI color.
Note: An existing visual style is not changed when the system variable gets a new value. Temporary visual style will be created as a clone of visual style assigned for current viewport.