Whenever I set my the "Back" button image to the "Return" userlogo from euphonicnight's Folders set, it displays much larger than it should. I've attached an image below to show:

The top-left one that's way too huge is the back button, of course; the one right below it shows how it should be, with a margin of 4, which is how it should be right then. Of course, even with a margin of 0 it wouldn't be coming out of the box.
I'm using the "Metallic, Telega" theme that comes built-in; it also does the same thing on the "Default" theme. I haven't tried it with other images, but I don't use other ones, so it's hard to have a good frame of reference.

It also doesn't work right with the "margins" option on thumbnails; instead of shrinking down like the other thumbnails, it simply crops down; the image stays the same, but the edges get cut off. Again, this is with the standard margin of 4 with the Metallic theme, but it's the same no matter what you set the margins to; the regular thumbnails shrink to fit in it, and the one set to the "back" simply crops down. It does this on the default theme as well, with the default back button; however, in that case you have to set the margin to around 75 for it to show.

Unfortunately, these issues mean I cannot use that custom back image; it simply looks too distorted.

Oh, and I am using the latest Fast Dial, 2.22b.

Doug