| Source Feature | Recipe § | Implementation | Test | Status |
| :--- | :--- | :--- | :--- | :--- |
| Hex Input | 3.1 | `.value` binding | Manual | ✓ |
| Native Picker | 3.2 | Click event on swatch | Manual | ✓ |
| Alpha Slider | 3.3 | Conditional rendering | Manual | ✓ |
| Validation | 3.4 | Regex check | Unit | ✓ |