Specifies a label for the node. Everything to the end of the line is used.
If the node has an ICON defined as well, then you can specify the position of the label relative to the node's centre-point by using LABELOFFSET.
The text for the label can contain special tokens to show map data.
This is drawn using the font specified by LABELFONT in the colours specified by LABELFONTCOLOR, LABELFONTSHADOWCOLOR, LABELBGCOLOR and LABELOUTLINECOLOR.