option for caching more than 1 picture in front and behind to improve performance when viewing through pictures very fast (now there is a short delay)
using boarder effects and transparent frame masks for easy picture modifiing (look at faststone viewer - it has nice effects)
using a clone/repair tool would be nice for those who don´t use Photoshop for easy corrections (look this at faststone viewer too
menu bars which pop up at the screen if moving the mouse to the screensides in fullscreen mode (faststone viewer...)
there are so many browser layouts available and they look almost the same but one is missing: it is not possible to have the thumbnail pane vertical over the whole screen.
file association is strange - example: if setting .ai format not to associate, xnview doesn´t remember the setting (.ai is not associated anyhow)
at least i like the amount of options in xnview for customizing the programm
option for caching more than 1 picture in front and behind to improve performance when viewing through pictures very fast (now there is a short delay)
Yes, this is a good idea. Perhaps the user could also optionally specify the buffer size for each direction. In that case the number of images cached would differ based on image sizes.