function IconButton(theme: any): any {
  return {
    MuiIconButton: {
      styleOverrides: {
        root: {
          borderRadius: 4
        },
        sizeLarge: {
          width: theme.spacing(5.5),
          height: theme.spacing(5.5),
          fontSize: '1.25rem'
        },
        sizeMedium: {
          width: theme.spacing(4.5),
          height: theme.spacing(4.5),
          fontSize: '1rem'
        },
        sizeSmall: {
          width: theme.spacing(3.75),
          height: theme.spacing(3.75),
          fontSize: '0.75rem'
        },
        sizeExtraSmall: {
          width: theme.spacing(2.6875),
          height: theme.spacing(2.6875),
          fontSize: '0.625rem'
        }
      }
    }
  };
}

export { IconButton };