public static function _wrapStart( $callee )
	{
		// colors looping outputs the same (i.e. if same line in code dumps variables multiple time,
		// we assume it's in a loop)

		$uid = isset( $callee['file'] ) ? crc32( $callee['file'] . $callee['line'] ) : 'no-file';

		if ( isset( self::$_usedColors[$uid] ) ) {
			$class = self::$_usedColors[$uid];
		} else {
			$class                   = sizeof( self::$_usedColors );
			self::$_usedColors[$uid] = $class;
		}

		$class = "kint_{$class}";


		return "<div class=\"kint {$class}\">";
	}