Quickest way to type a small tree by hand: Family > Son, Daughter
β > means "children of", , means "siblings".
Chain further levels the same way: Family > Son > Grandkid A, Grandkid B.
Each line merges in as a new branch under the currently selected node.
Also accepted, auto-detected: a nested Markdown bullet list (merges
in the same way), raw SVG contents (an export from this app
round-trips exactly β shapes, sizes, colors, labels; any other SVG is
parsed best-effort), or a full JSON export β which is different:
it's a whole-canvas snapshot, so pasting one replaces the entire
canvas instead of merging (Undo restores what was there before).