Nano Banana Pro Prompts

This is a comprehensive set of 10 instructions and strategies for writing effective prompts for Nano Banana Pro (Gemini 3 Pro Image), aimed at stabilizing output and avoiding garbled text. It emphasizes switching to 'Thought Mode' or 'Pro Mode', using descriptive sentences instead of keyword lists, specifying subject/background/atmosphere, and using positive language and English keywords for quality.

This is a prompt template designed for Nano Banana Pro to create professional, high-visibility YouTube or social media thumbnails by incorporating a strong sense of three-dimensionality and applying 10 proven design psychology laws, such as the Z-pattern, contrast effect, and the 3-color rule. The prompt specifically instructs the AI to add a 3D effect to the text to enhance visual impact.