+ showRangeSelector: true,
+ rangeSelectorHeight: 30,
+ rangeSelectorBackgroundStrokeColor: 'blue',
+ rangeSelectorBackgroundLineWidth: 3,
+ rangeSelectorPlotLineWidth: 0.5,
+ rangeSelectorForegroundStrokeColor: 'red',
+ rangeSelectorForegroundLineWidth: 2,
+ rangeSelectorAlpha: 0.8,