Currently we can set solid colors in FPD which a user can apply to text and art.
It would be great for us to also be able to define gradients that a user can apply to SVGs.
This would let us better simulate how text or images would appear when they are applied to products that have reflective surfaces such as stainless steel mugs, etc.
I'm guessing this specific request could have been turned down because I think you could just create a gradient 'pattern' image and use that? It might give you the effect you're looking for...