Flycast: Purple sky in Dragon's Blood (US) or Draconus (PAL)

[Shoegzer]

As soon as you can control your character in the game and look ahead, the sky appears purple:

However, on a real Dreamcast the game looks like this:

[flyinghead]

@twinaphex Here is a fix for this: https://github.com/flyinghead/reicast-emulator/commit/99af84d7fb119f33c4f0e8f8d8db4baefaf52760

[twinaphex]

Awesome, going to backport this. From what I hear, Redream is not even emulating this correctly right now.

[twinaphex]

Fixed as of this commit - https://github.com/libretro/reicast-emulator/commit/058919316ea2111786bc29287b9b026495168cfe