edit the color of just some nodes, how I can do it?

[flutter87]

MY CODE class _TreeViewPageFromJsonState extends State { var json = { 'nodes': [ {'id': 1, 'label': 'circle'}, {'id': 2, 'label': 'ellipse'}, {'id': 3, 'label': 'database'}, ], 'edges': [ {'from': 1, 'to': 2}, {'from': 2, 'to': 3}, {'from': 1, 'to': 3}, ] }; ..... child: InteractiveViewer( .... child: GraphView( graph: graph, algorithm: BuchheimWalkerAlgorithm(builder, TreeEdgeRenderer(builder)), paint: Paint()
builder: (Node node) { var a = node.key!.value as int?; var nodes = json['nodes']!; var nodeValue = nodes.firstWhere((element) => element['id'] == a); return rectangleWidget(nodeValue['label'] as String?); ....

Widget rectangleWidget(String? a) { return Container( child: Text('${a}')), ); }

final Graph graph = Graph()..isTree = true; BuchheimWalkerConfiguration builder = BuchheimWalkerConfiguration();

@override void initState() { var edges = json['edges']!; edges.forEach((element) { var fromNodeId = element['from']; var toNodeId = element['to']; graph.addEdge(Node.Id(fromNodeId), Node.Id(toNodeId)); });

[nabil6391]

you can pass the color as a parameter to the rectangleWidget

[NehaKushwah993]

rectangleWidget() is providing the node, you can change it from there.