Core Concept: Every pixel (x,y) is treated as a node. The background color represents the optimal tour topology of all user nodes plus that pixel.
1. Click to add a node (Max 6).
2. Drag nodes to reshape regions.
3. Regions are calculated using Held-Karp logic.
Note: Rendering might be intensive with 5+ nodes due to TSP complexity (O(N^2 2^N)).