Thanks for your reply!

Is it extremely difficult to add one option to Lightroom ??
Because that was the reason why I bought autoviewer; to make the unselected image disappear in the background-color ...

Do you know how to do that? Or anyone else ??

How exactly should I manually modify gallerymaker.xml ??
For instance, I would like to add to Lightroom 2.5  the option to choose the transparency (or black or white) of the images that are not shown (=unselectedBrightness). How do I add this in Lightroom ??

I just bought the autoviewer pro, but I am a bit disappointed about the new functionalities in Lightroom; I can't get them in ... Anyone willing to help me?? :)