addLeafLegends	addLeafLegends
addLegendBin	addLeafLegends
addLegendFactor	addLeafLegends
addLegendImage	addLegendImage
addLegendNumeric	addLeafLegends
addLegendQuantile	addLeafLegends
addLegendSize	addLegendSize
makeSymbol	makeSymbol
sizeBreaks	addLegendSize
sizeNumeric	addLegendSize
