export const hoverTransition = 'transition: all .1s ease' ; export const sharedBehaviour = ( fill ? ) : string => `
  height: 16px;
  width: 16px;
  fill: ${ fill };
  opacity: 0.5;
  ${ hoverTransition };
  &:hover {
    cursor: pointer;
    fill: ${ fill };
    opacity: 1;
  }
` ;