The kerning information is used to adjust the distance between certain characters, e.g. some characters should be placed closer to each other than others.
first: The first character id.
second: The second character id.
amount: How much the x position should be adjusted when drawing the second character immediately following the first.
The kerning information is used to adjust the distance between certain characters, e.g. some characters should be placed closer to each other than others.
http://www.angelcode.com/products/bmfont/doc/file_format.html