message: fix styling issue when using Button component with variant contained
diff: @@ -40,9 +40,20 @@ export type ButtonProps = MaterialButtonProps &
  */
  declare function ButtonType(props: ButtonProps): JSX.Element;
  -const ActualButton = React.forwardRef<any, ButtonProps>((props, ref) => (
  - <MaterialButton ref={ref} component={Link} {...props} />
  -)) as { (props: ButtonProps): JSX.Element };
  +const ActualButton = React.forwardRef<any, ButtonProps>((props, ref) => {
  + /**
  + This temporarily fixes a bug in material-ui where the color of the Link
  + overrides the color of the button
  + https://github.com/mui-org/material-ui/issues/28852
  + */
  + let color;
  + if (props.variant === 'contained') {
  + color = 'white';
  + }
  + return (
  + <MaterialButton ref={ref} component={Link} style={{ color }} {...props} />
  + );
  +}) as { (props: ButtonProps): JSX.Element };
  // TODO(Rugvip): We use this as a workaround to make the exported type be a
  // function, which makes our API reference docs much nicer.
  