Merge branch 'nights-capsule-color-fix' into 'next'

NiGHTS capsule color fix

This fixes the Egg/Ideya capsule from NiGHTS stages being given SKINCOLOR_RED as a color. Not really relevant for vanilla SRB2 (since it doesn't use green in the sprite), but it may be relevant for custom mods using a custom NiGHTS capsule sprite that happens to use green.

See merge request !189