How do I access the Costume Closet and the Friends Profile?

I noticed there were some blank cards in the store while buying stuff. There's a completely white card in the Gold Cards section and some cards with weird pictures on them. What are they?

Other improvements:

How about the ability to costumize any part, like handheld items and normally uncostumizable parts?

Could you add the Wildfire statue on Main Street in Poptropolis games?

The white cards are from AS3, need to be patched.
Shift + F opens the Friends page!

Yes to both suggestions!