Images were often too small, even on the Glo. I have decided recently that I am going to always use Sigil to make suitable images full screen with svg tags. I always edit epubs anyway with Sigil to fix margins and line-height; now I am going to add these images to the changes I make. Maps are a prime candidate for this treatment. Should only take a minute or so per image. Of course, if the image's resolution is too low anyway, making it full screen may not help make it more legible. At which point we can blame the publishers for a poor job.
