The double dummy markers in green and red are not distinguishable for many people who are color-blind because red and green look the same. Would it be possible to make the red ones a different shape from the green ones? Or to distinguish them in some other way?. Eg. with - and +?
						
						
						
					
					
				
		
	Page 1 of 1
			
	
fix Double dummy for colour-blind people
	
	Page 1 of 1
	
	

 Help