This prompt can generate a modern beautiful 3D icon based on any Keyword. The only limit is your imagination. Write the prompt and insert your preferred Keyword so Midjourney can use its imagination to give your desired result.

A futuristic digital 3D X icon, floating in an ethereal space, illuminated by vibrant cyan and green lights. The design is sleek and modern, featuring holographic details that create depth and movement against a black background. --ar 50:37