Could use a user-interface or ui/u tag. “design” is too ambiguous (programming design? system design?), and “graphics” is too specific.
Whoops, didn’t see https://lobste.rs/s/glnxre/can_we_have_ux_tag. I think arguing “well, not many posts use design, so we don’t need ui/ux” is not logical, perhaps design isn’t a useful tag for ui/ux because people don’t think it’s appropriate. But it seems like folks don’t want more ui/ux stories, so that’s fine.