08/29/21 – The answer to this post is still relevant, but has been further updated in a new post – Click here     Question – from Ken Johnson:  I have read some very confusing things regarding the effectiveness of the “Gamut Warning” when soft proofing in Photoshop.  Is the Gamut Warning of any value when editing RGB images for photo-based ink jet printers and, if not, what is the best way to detect and deal with out of gamut colors?   Answer: Thanks for an interesting but complex question – I’ll try to avoid being overly-technical … The answer applies