Thank you! Now I understand why you asked about choosing this VGA approach of yours
All the more thanks, RbnJrg, for taking the time to patiently explain the intricacies to me. Despite all being said against an overlaid text in a VGA image as an unsatifactory solution for kindle, I like to think I learned a lot.
Apologies for posting this discussion in the wrong forum. If only admin would be so kind as to please transfer this thread over there where it might (perhaps) be of some use to someone who come up a the same question.
And if Hitch offers any comment I'd be only happy to hear it.