VTuber Streaming Screen Generation with Customizable Character and Theme

A comprehensive prompt designed to generate a high-quality, immersive VTuber streaming screen layout. It specifies a 3D anime-style cell-shaded rendering, allowing customization of the character's appearance and the overall room/UI theme (e.g., Cyberpunk, Gothic Horror, SF). The output includes the character sitting in a themed gaming chair, a detailed 3D background, foreground elements like a keyboard and mug, and a themed chat window with realistic Japanese text comments.