Resolves issue #13 by implementing comprehensive aircraft legend improvements:
## New Features
- **Size-based aircraft icons**: Created distinct SVG icons for light, medium, large, and heavy aircraft with progressively larger visual representations
- **Visual aircraft icons in legend**: Replaced colored squares with actual aircraft silhouettes showing relative sizes and types
- **Enhanced categorization**: Added military category to legend and improved icon selection logic
## Improvements
- **Better differentiation**: Each weight class now has a unique icon shape, not just color
- **Accurate ADS-B mapping**: Icons correctly map to decoded ADS-B emitter categories
- **Clearer legend display**: Users can now see actual aircraft shapes instead of generic colored rectangles
## Technical Changes
- Created 4 new SVG icons: light.svg, medium.svg, large.svg, heavy.svg
- Updated legend HTML to embed aircraft SVG icons inline
- Enhanced JavaScript logic to better match categories to appropriate icon types
- Simplified color mapping function for cleaner code
This addresses the original concerns about confusing legend entries and lack of visual differentiation between aircraft types.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Replaced simple geometric shapes with detailed, realistic SVG icons for all aircraft types
- Implemented color differentiation based on aircraft weight categories:
* Light (<7000kg): Sky blue
* Medium (7000-34000kg): Green
* Large (34000-136000kg): Orange
* Heavy (>136000kg): Red
- Created new icons for: commercial airliner, helicopter, cargo aircraft, general aviation, military fighter, ground vehicle
- Updated legend to reflect new weight-based categories
- Modified getAircraftColor() to assign colors based on aircraft category/weight
Closes#17🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Extract all aircraft type SVG designs to separate files in /static/icons/
- Add icon caching system with async loading and fallback mechanisms
- Implement dynamic marker icon updates when aircraft properties change
- Detect and respond to aircraft type/category, ground status, and rotation changes
- Use currentColor in SVG files for dynamic color application
- Maintain performance with intelligent change detection (5° rotation threshold)
- Support real-time marker updates for weight class transitions and ADS-B changes
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
