Two groups of colored nodes—blue and green—hover near the center of a canvas, responding to mouse clicks on Split and Unite buttons that reconfigure their positions. The visualization renders each frame to a 2D Canvas context, using `d3.forceSimulation` with `d3.forceManyBody`, `d3.forceX`, and `d3.forceY` to control attraction and separation. Clicking Split drives the blue cluster to the left and green to the right; Unite pulls them back toward overlapping centers while adding `d3.forceCollide` to keep nodes from merging. Node positions, colors, and radii are set per object, with 200 blue and 50 green circles generated randomly.