# Welcome to the Highcharts Maps JS (highmaps) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# plotOptions.mapbubble.sizeBy

Whether the bubble's value should be represented by the area or the width of the bubble. The default, `area`, corresponds best to the human perception of the size of each bubble.