quick chart color
When adding a quick chart web part have the ability to specify the colour for the data points. OR use colours from the Theme for the site.
Michael Kirshner commented
I implemented a Modern Script Editor web part and used css scripting to change the colors.
The Modern Script Editor can be found here: https://github.com/pnp/sp-dev-fx-webparts/tree/master/samples/react-script-editor
It has allowed me to add script on the newer Modern SharePoint page as I was accustomed to do on the classic pages of previous versions.