Material-Ui Makestyles (motyw)

import { makeStyles }from '@material-ui/core/styles'
import styles from './styles';

const useStyles =  makeStyles(theme => (styles(theme))); // here call styles function imported from styles.js
const SideNav = ({drawerState, toggleDrawer}) => {

  const classes = useStyles();

return (
 <Box className={classes.root}>

    <Drawer className="drawer" anchor="left" open={drawerState} onClose={() => toggleDrawer(false)}>
      <NavList></NavList>
    </Drawer>

  </Box>
);


export default SideNav;


//styles.js

const styles = (theme) => {
return ({
    root: {
        '& .drawer': {
            backgroundColor:'red'
        }
    }
});

export default styles;
SECRET MYSTERY