How to use the @contentful/forma-36-tokens.colorElementLightest function in @contentful/forma-36-tokens

width: '28px',
    height: '28px',
    position: 'absolute',
    top: '50%',
    left: '50%',
    transform: 'translate(-50%, -50%)',
    transition: `opacity ${tokens.transitionDurationDefault} ${tokens.transitionEasingDefault}`,
    svg: css({
      position: 'absolute',
      top: '50%',
      left: '50%',
      transform: 'translate(-50%, -50%)'
    })
  }),
  errorImage: css({
    backgroundColor: tokens.colorElementLightest,
    width: '100%',
    height: '40px',
    position: 'relative',
    zIndex: -1,
    svg: css({
      fill: tokens.colorTextLight,
      width: '100%',
      height: '50%',
      position: 'absolute',
      top: '50%',
      left: '50%',
      transform: 'translate(-50%, -50%)'
    })
  })
};