Colors of multiple overlapping series in area charts get too dark
Problem
When there are many series overlapping, the overall chart is getting a little dark on overlapping portions.
![Screen_Shot_2020-04-06_at_8.14.20_PM__1_](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)
Proposal
Lighten the colors or reduce opacities to have lighter overlapping portions.