out of the box, you can increase the size of the axis labels using --> `chartOptions.hAxis.textStyle.fontSize` -- in order to change the handles or add the scroll bar, you will need to manually modify the control's SVG on the `'ready'` event...
– WhiteHatApr 15 '20 at 12:46
had a quick look ... library doesn't seem to provide direct way to modify the styles of the range controls ... however you can simply use css ..
– gdhApr 16 '20 at 13:10