The FeatureRenderer renderers arbitrary OpenLayers.Feature.Vector objects given a list of symbolizers. The FeatureRenderer component can be used anywhere a box component is used.
The js is not minified so it is readable. See renderer.js.
If the feature renderer is not given a feature, it can be configured to render a default feature based on geometry type alone.
You can render any OpenLayers.Feature.Vector object with a FeatureRenderer. Use the inputs below to modify the well-known text and symbolizer. These will be used to render a feature in a new window.