docs: function _add_table_row(item, color, prefix, suffix){
  	//var rep_color = aid.color(item.category());
  	var out_rep = bbopx.noctua.type_to_span(item, color);
  	if( prefix ){ out_rep = prefix + out_rep; }
  	if( suffix ){ out_rep = out_rep + suffix; }
  	var trstr = null;
  	if( color ){
  	    trstr = '<tr class="bbop-mme-stack-tr" ' +
  		'style="background-color: ' + color +
  		';"><td class="bbop-mme-stack-td">' + out_rep + '</td></tr>';   
  	}else{
  	    trstr = '<tr class="bbop-mme-stack-tr">' +
  		'<td class="bbop-mme-stack-td">' + out_rep + '</td></tr>';   
  	}
  	enode_stack_table.add_to(trstr);
      }