title: Always show overlay for edges in Cytoscape.js
body: <p>Is there a way to always show the edge line overlay in Cytoscape.js</p>
  
  <p>The gif below show that the overlay is shown when the edge is active (after select or tap)</p>
  
  <p><a href="https://imgur.com/MoumiYW" rel="nofollow noreferrer"><img src="https://i.imgur.com/MoumiYW.gif" alt="http://imgur.com/MoumiYW"></a></p>
  
  <p>Here is the current styling I have :</p>
  
  <pre><code>var cy = cytoscape({
      container: document.getElementById('cy'),
      style: cytoscape.stylesheet()
          .selector('node')
          .css({
              'background-color': '#69B8B6',
              'border-color': '#AABFB8',
              'border-width': '2px',
              'width': '35px',
              'height': '35px',
              'content': 'data(name)',
              'font-size': '11px',
              'font-weight': 'bold',
              'color': '#337AB7'
          })
          .selector('edge')
          .css({
              'target-arrow-shape': 'triangle',
              'source-arrow-shape': 'circle',
              'curve-style': 'bezier',
              //'control-point-weight': 0.5,
              'content': 'data(name)',
              'font-size': '7px',
              'line-color': '#E4860D',
              'line-style': 'dotted',
              'overlay-color': '#c0c0c0',
              'overlay-padding': '50px',
              'overlay-opacity': 100
          })
          .selector('node:selected')
          .css({
              'background-color': '#E4860D'
          })
          .selector(':active')
          .css({
              'line-color': '#E4860D',
              'line-style': 'solid',
              'overlay-color': '#c0c0c0',
              //'overlay-padding': '100px',
              'overlay-opacity': 100
          }),
      layout: {
          name: 'grid',
          padding: 10
      },
      userZoomingEnabled: false,
      ready: function(){ console.log('ready') }
  });
  </code></pre>
  
  <p>However this has no effect of the edge overlay for non active states.</p>