I found XnView great... much better than "the others" with nice looking GUI etc. etc.
However when I switch to the fullscreen viewing I found that there's no way to change the ugly SYSTEM font of image's filename.. or to turn off displaying it. Also hate that the text is not transparent but fixed with black background.
Well it would be nice to have in options:
[x] Display image's filename
[x] Transparent image's filename
Image title / filename font [ ... Font chooser ]
Align title [ Left | Center | Right ] / [ Top | Middle | Bottom ]
Or even some filename toggle key shortcut would be much apriopriated.
(When I just want to see nice pictures.. without the titles)
I found also a

Last Wish (idea) is alternate shortcut set (Irfan way).. with no Ctrl+ and so on.. but simple keys like S for resize R for rotate... this would accelerate commonly used actions.
Best regards,
Adam