//Background color of Chart
//Background and border opacity of Chart. Default value is 0.3
//Other chart options
I would like to set the chart background to match the containing div background
I have tried background-color : transparent and opacity :1 but the default white background is still showing
To change color schemes, switch to a different theme. In Excel, click Page Layout, click the Colors button, and then pick the color scheme you want or create your own theme colors.
We have built-in themes for chart control. You can change the theme color for chart dynamically using chart theme property. Please check with the below documentation link.
Please revert us if you have any concerns.