graph {
    fill-color: white;
}
node { size-mode: fit; shape: rounded-box; padding: 3px, 2px; }

node.Input {
	fill-color: green;
}

node.Output {
	fill-color: orange;
}

node.Function {
	fill-color: grey;
}


edge {
    arrow-shape: arrow;
    arrow-size: 6px, 4px;
}

node:clicked {
    fill-color: blue;
}