There are more Roma who don't look white than do. They only do in most depictions because the ones drawing or playing them are not Romani. And they tend to just perpetuate stereotypes anyway. They haven't proven even once being able to do it in any sort of way that "shouldn't matter."
The problem is that Hollywood has been notoriously bad at Roma depictions. And it'd be yet another case of whitewashing.
It's about as important as many other character backgrounds.
A complication that could have been solved by having actual Roma heroes and not whitewashing them.
Love is for souls, not bodies.