A long expression that specifies the transparency of the inside tooltip, 0 means
fully opaque, 50 means semi-transparent while 100 means completely transparent.
By default, the TransparencyInside property is 0. The
TransparencyInside property has no effect if it is 0. Use the
TransparencyInside property to display semi-transparent inside tooltips. Use
the anchor elements to display inside tooltip. The TransparencyInside property
gets or sets a value indicating the percentage of transparency of the inside
tooltip. The transparency is a value from 0 to 100; 0 indicating fully opaque
and 100 indicating a completely transparent tooltip.
