Here's what the current icon looks like "in action": 16x16 on a light background (white, an Explorer window) and on a dark background (blue, Royale Windows theme, application title and taskbar button). Of course we could do better (with the help of a graphics professional
) but it looks much better than the original "grey button" icon IMHO. You should also keep in mind that 16x16 is not an easy size to deal with, there's too few pixels, and also that the XnView logo is not an easy one to convert to an icon, being mostly an outline.
I'd really keep this icon until there's anybody on the forum or elsewhere (I remember reading there are forums in which you ask for a logo, graphics etc. and people are glad to help, there was a forum member which had his avatar designed by one of these people) able and willing to design a NEW logo and icon for XnView 2.0 (if the new release introduces DeLuxe features and a "real" thumbs database, I wouldn't call it "just" 1.83
Oh, and BTW, the icon that I DON'T like is the folder tree with that white background, in the menubar... I'd replace it with the main icon.