I applied a today theme, the green one from MSFT, but the dialing/phone screen still comes up as blue. Is there a manual way to change that screen as well?

idc22, do a search for eten in this forum. That's the great dialer skin many of us use. If you find the french set, keep looking. The english ones have been discussed and linked to quit a few times. When you find eten you'll find some other options. Good luck!