Graph editor

Custom node components (diamond decision with yes/no ports, an embedded slider), custom edge labels, and several edge routers. Drag nodes, drag from a right-hand port to a left-hand port to connect, click an edge then Delete, 0 fits.

Read-only: nothing can be moved or deleted. Focus a node and use the arrow keys to hop between neighbours, Enter collapses or expands it (and reports a click). Nodes are coloured by category; the legend names them and its edge entries filter edges by kind. Double-click a node to add neighbours without moving the rest, or right-click (Shift+F10 from the keyboard) for a menu callback.

Hovering: nothing · Last context menu: none