EvilDragonfiend

shit hit enter on the title while I am still writing

I need to check if everything is alright. I will set it draft until I checked everything.

Very experimental. not sure how it will work well.

todo: image can exist into more than two groups

Ready for reviews

I locally checked `/datum/hallucination` using this system works pretty well. I didn't push the change to this. Client reonnection (or aghost to mob again) can revive a hallucination image they're...

Ready for a review

I will redesign this into component or element whatever. That'll be better than this raw thing honestly.

I changed the system into subsystem, also I added an element `/datum/element/client_vision_element` that handles how it will be deleted after a parent is removed. I figured element shouldn't replace this...

Plans: * `PR to TG`: Low priority. They don't use "add_alt_appearance" actively. Only 29 use cases in their code. Altho their review will be helpful, but this will be done...