Not only getting rid of the "useless" (and thankfully, consistent)
bitplane parameter, but also allowing those shortened macros to be
redefined for the upcoming little ZUN inconsistency.
Part of P0120, funded by Yanga.
Why does this function also have to load sprites for the viewing mode
of the high score menu?! Oh well, ridiculous functions deserve
ridiculous names…
Part of P0119, funded by [Anonymous] and -Tom-.
The TH04 one might have the same function structure, but the only thing
that's actually identical in both games is the picture darkening loop.
Part of P0119, funded by [Anonymous] and -Tom-.