| Arrow Keys | move the shape |
| Spacebar | change the shape (rectangular vs. circular) |
| Enter | change shape color |
| , | decrease height |
| . | increase height |
| k | decrease width |
| l | increase width |
| b | change background color |
| n | create a new shape |
| 1 | turn off border |
| 2 | reset border |
| 3 | random border |
| a | increase z-index(move to foreground) |
| s | decrease z-index(move to background) |
| q | decrease opacity |
| w | increase opacity |