Update app.py

app.py

@@ -26,15 +26,15 @@ def update_graph(input_size, hidden_size, output_size, input_color, hidden_color
 
     # Input layer neurons
     for i in range(input_size):
-        G.add_node(f'I{i}', layer='input')
+        G.add_node(f'I{i+1}', layer='input')
 
     # Hidden layer neurons
     for i in range(hidden_size):
-        G.add_node(f'H{i}', layer='hidden')
+        G.add_node(f'H{i+1}', layer='hidden')
 
     # Output layer neurons
     for i in range(output_size):
-        G.add_node(f'O{i}', layer='output')
+        G.add_node(f'O{i+1}', layer='output')
 
     # Connections from input layer to hidden layer
     for i in range(input_size):