Nimble Commander forum

When in quick view mode by pressing [space] - small images scaled up to viewport (in second panel).
They look blurred and did not allow me to estimate its real sizes.
So, how to disable scale-up, i need only scale-down of big images?

Ah, yeah. That annoyed me too. In game dev we often have lots of small images, icons and stuff. Having them blown up looks bad and isn't very useful. An option to only upscale would be good. I'd make it default behavior anyway, since I'd imagine this makes most sense for the common use.

Don't know what to answer on this issue at the moment.
Quick view is actually a system-wide Quick Look (https://en.wikipedia.org/wiki/Quick_Look) with all it's backend/frontend infrastructure.
You can observe the same behavior in Finder itself - open preview panel (Shift+Cmd+P) and select any tiny picture.
Writing of own preview solution does not seem feasible now.

If it's not a trivial thing, then I suggest just leaving it as it is. Implementing your own quick preview solution would make no sense at all It's a relatively low annoyance, "would be cool" thing that I, for one, can perfectly do without.