When we import our designs from Illustrator or a similar program, the studio has a tendency to make the quality of these images look blurry and terrible. By allowing us to upload .svg we would be able to scale to any size without fear of ruining the quality of the design.
I know this is a very small request, but it would allow games to look more professional and allow UI designs to have that sense of polish that vector graphics have compared to .png and .jpeg