text: const DEFAULT_STYLES = {
    ':edge': {
      dir: 'none',
      color: '#cccccc'
    },
    ':house': {
      style: 'filled',
      color: '#fafafa',
      labeljust: 'l',
      fontname: 'Helvetica, Arial, sans-serif',
      fontsize: 16,
      margin: 10
    },
    ':house-2': {
      color: '#ffffff'
    },
    // Family subgraph
    ':family': {
      label: '',
      style: 'invis',
      margin: 0
    },
    ':node': {
      shape: 'box',
      style: 'filled',
      fontname: 'Helvetica, Arial, sans-serif',
      width: 2.5,
      fillcolor: 'white',
      color: '#cccccc'
    },
    ':digraph': {
      rankdir: 'LR',
      ranksep: 0.4,
      splines: 'ortho'
    },
    ':union': {
      shape: 'circle',
      style: 'filled',
      penwidth: 1,
      color: 'white',
      label: '',
      height: 0.1,
      width: 0.1
    },
    ':children': {
      shape: 'box',
      style: 'filled',
      label: '',
      height: 0.005, /* Make it look like a line. Brilliant! */
      penwidth: 0,
      width: 0.1
    },
    ':parent-link': {
      weight: 2 /* give priority to be straighter than parent2 */
    },
    ':parent2-link': {
      style: 'dashed',
      penwidth: 0.25,
      weight: 1
    },
    ':parent-child-link': {
      weight: 3 /* prefer bridges to be straight */
    },
    ':child-link': {
      dir: 'forward',
      arrowhead: 'tee',
      arrowsize: 2,
      weight: 2
    },
    ':child2-link': {
      style: 'dashed',
      penwidth: 0.25,
      weight: 1
    },
  }
  
  module.exports = DEFAULT_STYLES
  