battle backgrounds

Searching for battle background in the C0 disassembly yielded this:

Data: battle backgrounds

C0/C27F: 00 (WoB grass, nice blue sky)
C2/C280: 01 (WoR forest, brownish cast)
C0/C281: 02 (WoB desert, blue sky)
C0/C282: 03 (WoB forest, lush green)
C0/C283: 04 (town background.. tint seems to correspond to FF3usME's "Zozo - Inside buildings", rather than "Fanatics' Tower - Rooms" )
C0/C284: 05 (WoR dry land.. pinkish sky)
C0/C285: 06 (WoB Veldt.. dry land, blue sky.. believe I've seen this for WoR Veldt, too)
C0/C286: 07 (falling sky en route to Floating Continent)

C0/C287: 00 (WoB grass, nice blue sky)
C0/C288: 01 (WoR forest, brownish cast)
C0/C289: 2F (WoR desert, pinkish sky)
C0/C28A: 03 (WoB forest, lush green)
C0/C28B: 05 (WoR dry land.. pinkish sky)
C0/C28C: 05 (WoR dry land.. pinkish sky)
C0/C28D: 06 (WoB Veldt.. dry land, blue sky.. believe I've seen this for WoR Veldt, too)
C0/C28E: 07 (falling sky en route to Floating Continent)

I think this is right... Although I'm not seeing all the backgrounds here in this list...hmmm. I'd assume that swapping one byte for another would do just that. Not positive on that.

As for question #2, I'm not sure but I'd imagine there's a check in some background code that tells it to jump to the scrolling routine if it's a certain background id that uses it.
I doubt it would continue to scroll if you changed it to another non-scrolling background id, but I'm not sure.

I'm not the best to try and answer this kind of stuff but I am able to search the dissassemblys well enough.