That's a great set of modifiers to ensure the generated images have a professional, high-fidelity look!
Since the Imagen API doesn't have explicit settings for "4K" or "1080p" resolution, the best way to achieve this is by adding these keywords as powerful prompt suffixes. I have implemented a new dropdown for Resolution/Quality that appends specific descriptors to your prompt, encouraging the model to generate ultra-sharp, detailed images.
The output format is already a PNG image encoded in base64, so the "PNG" part of your request is already handled by the underlying API structure.
Here is the updated image_generator.html file with the new Resolution/Quality selector:
You now have two powerful ways to modify your image generation:
Style Selector: To choose the artistic medium (e.g., Oil Painting, Comics).
Quality Selector: To prompt for high-resolution, ultra-detailed output (e.g., Ultra HD (4K), Full HD (1080p)).
Try combining a style like Cyberpunk with the Ultra HD (4K) quality setting for maximum visual impact

