<https://s.mj.run/SRUagkQeXuY> <https://s.mj.run/Jn9k2FYUi_Y> <https://s.mj.run/VYE4jKmLaZg> generate a 3d app icon for ios in 1024 by 1024 style related to coding. Use deep purple gradient color in foreground and black in background