>>1866524I have a good idea how to make them, it's just that the software I normally use doesn't have all the functionality to do them right. I can do simple gradients fine, but for shaped ones I'd need to rasterize something, since I can't make vector masks or vector blurs with it.
As an example, I did some gradient stuff for the background objects of this Scanty & Kneesocks scene you might recognize. These ones here are all vector data.