| Left click | Place point |
| Right click | Close & save shape (outline) |
| Space | Close shape loop (filled) |
| Ctrl+Z / X | Undo last point |
| V | Save segment, start new shape |
| G | Cycle grid mode |
| C | Cycle snap mode |
| F | Delete last shape |
| S | Export JSON |
| I | Import JSON |
| color | Segment stroke color |
| a | Angle from center (deg) |
| d | Distance in grid units |
Data