Nano Banana Pro Master Prompt Template (JSON)

{
  "generation_mode": "thinking|standard",

  "output_specifications": {
    "resolution": "1K|2K|4K",
    "aspect_ratio": "16:9|1:1|9:16|custom",
    "quality_priority": "speed|balanced|quality"
  },

  "scene_description": {
    "primary_subject": "{argument name="primary subject" default="[main focus of image]"}",
    "environment": "{argument name="environment" default="[setting and background]"}",
    "atmosphere": "[mood and feeling]",
    "style": "[visual aesthetic]",
    "time_of_day": "[if relevant]"
  },

  "camera_controls": {
    "angle": "[camera perspective]",
    "focal_length": "[lens type - wide/standard/telephoto]",
    "depth_of_field": "[shallow/deep, what's in focus]",
    "composition": "[rule of thirds/centered/golden ratio/etc]"
  },

  "lighting_setup": {
    "primary_light": {
      "type": "[natural/studio/dramatic/soft]",
      "direction": "[where light comes from]",
      "intensity": "[bright/moderate/moody]"
    },
    "shadows": "[deep/subtle/minimal]",
    "color_temperature": "[warm/cool/neutral]",
    "special_effects": "[rim light/backlighting/etc if needed]"
  },

  "color_grading": {
    "overall_tone": "[vibrant/muted/monochrome/etc]",
    "color_palette": ["primary color", "secondary color", "accent color"],
    "mood": "[emotional impact of colors]"
  },

  "text_elements": [
    {
      "text_content": "[exact text to render]",
      "position": "[location in image]",
      "font_style": "[typography description]",
      "size": "[relative size]",
      "color": "[text color]",
      "effects": "[glow/shadow/3D/etc]",
      "language": "[if not English]"
    }
  ],

  "reference_images": [
    {
      "image_id": 1,
      "purpose": "style reference|composition reference|color reference|character reference",
      "extract_elements": ["specific elements to copy"],
      "apply_to": "[where to use these elements]",
      "transfer_intensity": "[0-100%]"
    }
  ],

  "characters": [
    {
      "character_id": 1,
      "detailed_description": "[ethnicity, age, gender, facial features, hair, expression]",
      "clothing": "[detailed outfit description]",
      "pose": "[body position and gesture]",
      "position_in_scene": "[spatial placement]",
      "consistency_reference": "[image_id if maintaining across multiple generations]"
    }
  ],

  "grounding": {
    "enabled": true|false,
    "search_queries": ["facts to verify"],
    "data_requirements": ["specific information needed"],
    "accuracy_priority": "high|medium"
  },

  "style_constraints": {
    "artistic_style": "[photorealistic/illustration/3D render/watercolor/etc]",
    "inspiration": "[specific artists or movements if relevant]",
    "must_avoid": ["elements to exclude"]
  },

  "technical_requirements": {
    "intended_use": "[social media/print/web/presentation]",
    "safe_zones": "[areas to keep clear fo"
  }
}