Hardcopy books cost more to print in colour than in black and white, whereas distributing an ebook that is readable using the Kindle app costs the same in both. Is it possible at Amazon to publish a hardcopy print-on-demand book in black and white and to publish the Kindle version so that it can be read using the Kindle app, if not on most actual Kindles, in colour?
I realise you could publish two separate editions, but what I am asking is whether you can do the above so that a prospective buyer can see both options and choose which version they want to buy in exactly the same simple way that they can see the options when the hardcopy and ebook versions are identical.