How to change candle stick color?

Hi,
I want to change the candle stick color by up in red and down in green.

I read these articles.
https://github.com/chartjs/chartjs-chart-financial/issues/114
https://github.com/chartjs/chartjs-chart-financial/pull/115
https://github.com/chartjs/chartjs-chart-financial/pull/37

I can not change the candle stick color by the ways these articles suggest.

I notice that these articles use chart.js@2.7.3 and chart.js@2.7.4

Today the chart.js is chart.sj@4.2.0

How do I change the candle stick color by up in red and down in green?

Thank you.