Option to enlarge image-only pages without stretching chapter ornaments

[nak0]

Hi,
I’m using KOReader for reading EPUBs and other ebook formats, and I like the app a lot so far.
I’d like to have full-page illustrations automatically enlarged to use as much of the screen as possible.
I found Style tweaks → Images → Full-width images, but this applies to every image in the book. As a result, small decorative images such as chapter ornaments, stamps, separators, etc. are also enlarged to the full width, which looks quite bad.
Would it be possible to add an option that enlarges an image only when it is effectively the only content on the page?
Ideally it would:
- detect pages containing only an image, apart from whitespace/page breaks;
- enlarge that image to the maximum available width/height;
- preserve its aspect ratio;
- leave inline images, chapter ornaments, decorative stamps, separators, etc. at their original/intended size;
- optionally have a minimum image size/percentage threshold so tiny decorative images are never treated as full-page illustrations.
Something like:
“Fit image-only pages to screen”
This would be especially useful for novels containing occasional maps, artwork, character illustrations, etc., without affecting the book’s smaller decorative graphics.
Thanks!