text: function warning(){
  	throw new Error('You must require a mode before requiring anything else.');
  }
  
  exports.Surface = warning;
  exports.Path = warning;
  exports.Shape = warning;
  exports.Group = warning;
  exports.ClippingRectangle = warning;
  exports.Text = warning;
  
  exports.setCurrent = function(mode){
  	for (var key in mode){
  		exports[key] = mode[key];
  	}
  };
  