code: public void setListSymbol(Chunk symbol) {
      	if (this.symbol == null) {
      		this.symbol = symbol;
      		if (this.symbol.getFont().isStandardFont()) {
      			this.symbol.setFont(font);
      		}
      	}
      }
docs: Sets the listsymbol.
  
  @param	symbol	a <CODE>Chunk</CODE>