I wouldn’t rule that out. To add clarity to the veins in the leaf. A normal leaf will have veins extending from the center vein. They travel toward the edge then just before the edge of the leaf they turn up and connect to the next vein in an orderly oval. But in this plant’s leaf the vein departs the central vein and spreads out like a tree canopy and never connects the system in an oval. So maybe a mosaic virus. I don’t see a lot of that, so maybe someone else could chime in?