# 2026-02-11

## TGA Icon Converter Improvements

### AI Upscaling with Real-ESRGAN
- Added `modules/ai_upscaler.py` - Real-ESRGAN integration for AI-powered upscaling
- Designed specifically for low-res game textures/icons (not pixel art)
- 4x upscale factor with neural network enhancement
- Falls back gracefully if model not available
- Only shown in UI if Real-ESRGAN is installed

### No Upscaling Option
- Added "❌ No Upscaling" as the default option
- Keeps original icon size, just centers on canvas
- Useful when you want the icon at original resolution on a larger canvas

### Auto-Detection Fixes
- Changed from `glob` to `rglob` to search ALL subfolders recursively
- Now properly finds TGA files in version subfolders like `19.3.2.201024`
- Shows relative paths in the file list

### Icon Cache Parser
- Created `modules/icon_cache_parser.py` to parse `iconcache.dat`
- Attempts to extract item names from the binary cache file
- Uses heuristics: pattern matching for icon IDs, string extraction for names
- Challenge: proprietary binary format with no public documentation

### Commits
- `5374eba` - feat: add Real-ESRGAN AI upscaling support
- `5ec7541` - feat: add "No Upscaling" option to TGA converter
- `8f7c7cb` - fix: TGA converter improvements (auto-detection, defaults)

## Context
User clarified that game icons are "not pixel icons really, just quite low res" - Real-ESRGAN is perfect for this use case (designed for rendered graphics, not pixel art).