text: const theme = {
    topicHover: '#333232'
  };
  const CardShadow = {
    basic: '0 2px 2px 0 rgba(0,0,0,.14), 0 3px 1px -2px rgba(0,0,0,.2), 0 1px 5px 0 rgba(0,0,0,.12)',
    medium: '0 4px 5px 0 rgba(0,0,0,.14), 0 1px 10px 0 rgba(0,0,0,.12), 0 2px 4px -1px rgba(0,0,0,.2)',
    spread: '5px 5px 40px rgba(0,0,0,.14)'
  }
  const LinkStyle = {
    color: 'grey'
  }
  export {
    theme,
    CardShadow,
    LinkStyle
  }