# Branding Update - Nano Banana Pro

## Summary

Updated all documentation and code to consistently refer to the image generation model as **"Nano Banana Pro"** and emphasize that **AI generation is the default method** for all diagram types.

## Changes Made

### 1. Consistent Model Naming

**Before:** Mixed references to "Gemini 3 Pro Image Preview", "Google's Nano Banana Pro", etc.

**After:** Consistently use **"Nano Banana Pro"** everywhere

### 2. AI as Default Method

**Before:** Presented as one of two options (AI or code-based)

**After:** **AI generation is the default and recommended method** for all diagram types

### Updated Files

#### Documentation
- ✅ `SKILL.md` - Updated skill description, overview, and all sections
- ✅ `README.md` - Emphasized Nano Banana Pro and AI as default
- ✅ `QUICK_REFERENCE.md` - Highlighted default AI method
- ✅ `IMPLEMENTATION_SUMMARY.md` - Simplified model references

#### Scripts
- ✅ `generate_schematic_ai.py` - Updated docstrings
- ✅ `generate_schematic.py` - Updated help text and descriptions

### Key Messaging

**Primary Message:**
> "Generate publication-quality scientific diagrams using **Nano Banana Pro**. AI generation is the **default method** for all diagram types."

**Secondary Messages:**
- No coding or templates required
- Automatic iterative refinement
- Built-in quality review
- Publication-ready output in minutes
- Works for all diagram types

### Model References

**User-Facing (Consistent):**
- Always: **"Nano Banana Pro"**
- Never: "Gemini 3 Pro", "Google's model", etc.

**Internal/Technical (Preserved):**
- API endpoint: `google/gemini-3-pro-image-preview` (required for OpenRouter)
- Review model: `google/gemini-3.0-pro-latest` (internal implementation detail)

These internal references are kept in the code but not emphasized in user documentation.

## Documentation Structure

### SKILL.md (726 lines)
```
---
description: "...using Nano Banana Pro AI..."
---

## Overview
- AI generation is the default method
- Uses Nano Banana Pro

## Quick Start: AI Generation (Default)
- Emphasizes this is the default method

## Default Method: AI Generation with Nano Banana Pro
- Clear statement that AI is default
- Only exception: existing TikZ files
```

### README.md (344 lines)
```
# Nano Banana Pro AI Generation

## Quick Start
### AI Generation with Nano Banana Pro (Default Method)

## Why Nano Banana Pro is Default
- Fast, easy, quality, universal, publication-ready
```

### QUICK_REFERENCE.md (210 lines)
```
**Default Method:** AI generation with Nano Banana Pro

## Basic Usage (AI - Default)
- Emphasizes AI is default

## Why AI is Default
- Clear benefits listed
```

## User Experience

### Before
```bash
# User might think they need to choose between methods
python scripts/generate_schematic.py "diagram" -o out.png --method ai
```

### After
```bash
# AI is default, just use it
python scripts/generate_schematic.py "diagram" -o out.png

# That's it! Nano Banana Pro handles everything
```

## Verification

All tests passing:
```
✓ PASS: File Structure
✓ PASS: Imports
✓ PASS: Class Structure
✓ PASS: Error Handling
✓ PASS: Wrapper Script
✓ PASS: Prompt Engineering

Total: 6/6 tests passed
```

## Brand Guidelines

### ✅ DO:
- Call it "Nano Banana Pro"
- Say "AI generation is the default method"
- Emphasize ease of use (no coding required)
- Highlight automatic quality review
- Mention iterative refinement

### ❌ DON'T:
- Use "Gemini 3 Pro Image Preview" in user docs
- Say "Google's model" or "Google's Nano Banana Pro"
- Present AI as optional or one of many methods
- Mention code-based generation prominently
- Reference internal model names in user-facing text

## Example User Journey

1. **User reads SKILL.md:**
   - "Uses Nano Banana Pro AI as default"
   - Clear and simple

2. **User tries it:**
   ```bash
   python scripts/generate_schematic.py "flowchart" -o flow.png
   ```
   - Works immediately
   - No method selection needed

3. **User gets results:**
   - Three iterations (v1, v2, v3)
   - Quality review log
   - Publication-ready output

4. **User understands:**
   - "Nano Banana Pro is the default"
   - "AI handles everything automatically"
   - "No coding required"

## Impact

### Clarity
- **Before:** "Choose between AI (Gemini 3 Pro Image Preview) or code-based..."
- **After:** "Use Nano Banana Pro (default method)"

### Simplicity
- **Before:** Multiple methods, unclear which to use
- **After:** One clear default method

### Branding
- **Before:** Mixed Google/Gemini/Nano Banana references
- **After:** Consistent "Nano Banana Pro" branding

## Conclusion

The scientific-schematics skill now consistently:
1. ✅ Refers to the model as **"Nano Banana Pro"**
2. ✅ Positions **AI generation as the default method**
3. ✅ Simplifies the user experience
4. ✅ Maintains clear, consistent messaging

All documentation and code updated, all tests passing, ready for use.

