I think, creators should think about where they want to go with Vintage Story. Tittle say enought. But as it is hard type of survival games i think mix of colors lively with something grunge will be ok. We got interesting story and connection with nature and industry, show well what is going on there. I will stick to that. I got an idea to use V and S to made an icon for game. Just whole title graphic is other thing.
V can be used as tree and connect it to S which can be partly industrialized to show progress
Many games got interesting icons, mosty simply, but if you saw it once, you know what are you talking about if you saw it on friends desktop for example.
Examples
Valheim
V Rising
Take a look on other titles on the internet like Peak, Repo, Grim Dawn, Helldivers 1
Simply but easy to remember. That's all.