How to higlight the higest and loswest value in difrrent color in line chart

HI
I need to develop the chart like below image, i able to achieve it except the highlight the low and high data which are in red dot and greent dot in image

any help is appreciated thanks in advance

Start by reviewing the linked screenshot and the existing line-chart APIs or documentation in Charts. Determine how the highest and lowest values should be identified and displayed as differently colored dots; the work is done when both extrema are highlighted consistently in the chart.

Written by the indexing model from the issue text.