| drag | rectangle zoom (selection box) |
| right / middle drag | pan |
| wheel | zoom toward cursor |
| click a point | open Julia set for that c |
| J | toggle Julia / Mandelbrot |
| arrows | pan · + / − zoom |
| B / R | back / reset view |
| P | toggle live Julia preview |
| M | bookmarks · S save bookmark |
| H | this help |