# Implement ASCII Chart Visualization - TODO Steps

- [ ] Define chart data structures for heart rate, power, and elevation
- [ ] Implement data downsampling for large datasets
- [ ] Design chart layout with lipgloss
- [ ] Create rendering logic using Unicode block characters
- [ ] Handle terminal resize events
- [ ] Integrate with activity detail screen
- [ ] Write unit tests for chart components
- [ ] Verify rendering with sample data