Canvas zoom shipped pan as middle-drag / Space+drag, which left m unable
to reach a freshly-created frame outside the default viewport — the
only escape was middle-button or holding Space, neither of which is
discoverable.
Empty-canvas left-pointerdown now starts an ambiguous gesture: if the
cursor moves past a 3px screen-space threshold it promotes to a pan
(Excalidraw / Figma standard); below the threshold it falls back to
the historic "click empties the selection" UX so plain clicks still
deselect. Pointerdown on a device, frame, IO marker, port, or cable
keeps routing to its own handler. Middle-drag and Space+drag pan
unchanged.
mAi
2933bb8662