code: function(node) {
      // make stroke value accessible dynamically
      this._stroke = SVG.defaults.attrs.stroke
  
      // initialize data object
      this.dom = {}
  
      // create circular reference
      if (this.node = node) {
        this.type = node.nodeName
        this.node.instance = this
  
        // store current attribute value
        this._stroke = node.getAttribute('stroke') || this._stroke
      }
    }
docs: Initialize node