By inverting the color scheme in structures, one might twist the effect of altars, crystals and other things.
Possible example:

• Crafting altars, Astral relays - will get starlight when it is daytime, but won't get any at nighttime
• Celestial Collector Crystals - at night they will produce 0.3x times less, but at day they will produce 2x times more (making them even more effective than normal at night, at least I think, don't have the graph of effectivity)
• Rituals - either they have new effects or they work just if their crystal would have alcara on it
• Celestial gateways - maybe create second network? like you can only teleport normal<->normal or corrupted<->corrupted but not normal<->corrupted, though might not be usefull... (or they could have limited range, or be linked to other corrupted ones...)
• Infusing Pedestal - maybe there could something like corrupted infusion? dunno

These structures, as other things in AS, would be only working after you would unlock new research or even would require a new structure nearby, because it would be quite OP to just switch marble types and combine corruption with something like gelu or other faint ones.