title: OpenLayers 3 dynamic styling
body: <p>I need to be able to style features on a map after they have rendered per the users selection.</p>
  
  <p>Currently I am adding styles like this...</p>
  
  <pre><code>style: function (feature, resolution) {
                              var text = resolution * 100000 &lt; 10 ? response.text : '';
  
                              if (text != "") {
                                  styleCache[text] = [new ol.style.Style({
                                      stroke: new ol.style.Stroke({
                                          color: '#319FD3',
                                          width: 1
                                      }),
                                      text: new ol.style.Text({
                                          font: '12px Calibri,sans-serif',
                                          text: text,
                                          fill: new ol.style.Fill({
                                              color: '#000'
                                          }),
                                          stroke: new ol.style.Stroke({
                                              color: '#fff',
                                              width: 3
                                          })
                                      }),
                                      fill: new ol.style.Fill({
                                          color: colorFromDatabase
                                      })
                                  })];
                              }
                              else if (text == "") {
                                  styleCache[text] = [new ol.style.Style({
                                      fill: new ol.style.Fill({
                                          color: colorFromDatabase
                                      })
                                  })
                                  ]
                              } return styleCache[text];
                          }
  </code></pre>
  
  <p>...I need to be able to go in and change fill, stroke, etc... after render, I have had limited "success"...if that's what you want to call it...making all the features black.  </p>
  
  <p>Any help is greatly appreciated!!</p>