We explore using small textures called Signed Distance Functions (SDFs) as masks to create materials near indistinguishable from vectors images. This approach is great for many situtation within your game including signage, posters, banners, road marking, etc…
https://dev.epicgames.com/community/learning/tutorials/npJ6/unreal-engine-epic-for-indies-infinite-resolution-decals-in-ue5-the-vector-approach