Props

Props applied to the IconButton element wrapping the expand icon.

The content of the accordion summary.

Override or extend the styles applied to the component. See CSS API below for more details.

The icon to display as the expand indicator.

This prop can help identify which element has keyboard focus. The class name will be applied when the element gains the focus through keyboard interaction. It's a polyfill for the CSS :focus-visible selector. The rationale for using this feature is explained here. A polyfill can be used to apply a focus-visible class to other components if needed.