Art is about presentation of content, styling. Every cartoon has it's own way of doing 2D presentation in a way that content matches up to be pleasing to the ey

Art is about presentation of content, styling. Every cartoon has it's own way of doing 2D presentation in a way that content matches up to be pleasing to the eye. If UI is not designed to a consistent eye pleasing assortment of styled information, it doesn't work well. That's the whole point of native styling.