Enhanced visual treatment of pyramid face numbers when pieces are selected:
- Increased font size from 0.16 to 0.26 (62.5% larger)
- Repositioned to avoid edge clipping (0.12/0.88 instead of 0.05/0.95)
- Added dual-layer rendering: outline stroke + filled text with drop shadow
- Used vibrant amber colors (#fbbf24 for dark, #b45309 for light pieces)
- Added CSS transition for smooth animations
- Changed to bold Arial font (weight 900) for better readability
- High-contrast drop shadow (opacity 0.9) for visibility against yellow selection
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Co-Authored-By: Claude <noreply@anthropic.com>
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