Ngx-charts: Change element color on selection

[dvschnitz]

I'm submitting a ... (check one with "x")

[ ] bug report => search github for a similar issue or PR before submitting
[x] feature request
[ ] support request => Please do not submit support request here

Current behavior

The color of the element only changes when the bar/line/... is hoovered.

Expected behavior

Give the opportunity to change the bar color after the bar/line/... is clicked(selected).

• ngx-charts version: 6.1.0
  

[omid-nazifi]

have it already implemented? Actually I need it well. But I am seeing nobody answer it!