It's really annoying when you get an item like a stencil that affects the background, but you can't tell what it does until you actually try and layer it over a background once you have it in your wardrobe. In my opinion, it'd be great to have a preview background - something like the tile background most image editing software uses for transparent backgrounds - in order to show what effect these items have. If it does annoy some people, maybe the user could choose to turn it off, or choose a custom background item, even.

I hope this is the right place for this, since it affects the wardrobe, too.

I find myself ambivalent about this one. If Subeta chooses a background, then there will likely be other wears that this new feature won't work against either.