Type Default Value Read Only Static Description
Double 0 No No The spacing between characters.

This is used to alter the spacing between characters when you draw text on a line. The kerning is measured in thousandths of an m-space. If the kerning is positive the distance is added between each character to space the line out. If the kerning is negative the space is subtracted to condense the line. An m-space is typically the width of the widest character in the font.