02-13-2022, 04:53 PM 
	
	
	
		Some good explanations here:
https://patdavid.net/2012/06/getting-aro...or-curves/
https://patdavid.net/2012/07/getting-aro...ore-color/
	
	
	
https://patdavid.net/2012/06/getting-aro...or-curves/
https://patdavid.net/2012/07/getting-aro...ore-color/

 
 
