[axbmcuser]

Thanks for the feedback.

Regarding "Would you be willing to tweak the views in folders (non-library) ?":

Im afraid that is not only not some smaller "tweak", but also a conceptional question!
The Wall Views started out to be what's most important in a home cinema media centre: Poster Walls. With focus on exact that. I made them cleanly backward-compatible to wider thumbnails, pictures or even squared graphics. Of course this means there will be such empty space which could also be considered not ideal. But: To be honest, i know that Confluence shows the (extracted) wide video thumbs larger like in your nice comparaison, but this strange mixing of formats Confluence does (square thumb, wide thumb, high poster) would be no real solution for me since it also feels really kind of odd visually. (Your Confluence screenshot looks better than what Confluence does, when there are even more formats in the play)

For now, best you can do is use the (Poster) Walls 2x7 instead of 3x9 to get larger thumbs in such a "no-poster" situation.