RangeVisualizationStyle  
  constructor(outerColors: ColorByZoom = DEFAULT_OUTER_COLORS, rangeStyles: Map<String, RangeStyle> = emptyMap(), defaultRangeStyle: RangeStyle = RangeStyle())
Parameters
outerColors 
The ColorByZoom of the area outside of the reachable range.
rangeStyles 
The styles for each named Range.
defaultRangeStyle  
The default fallback style for a Range.