This example shows a force-directed network graph of electronics-related topics, with nodes representing categories like laptops, gaming console, Smartphones, and Music, connected by weighted links. The graph uses the D3 v4 library’s `d3.layout.force()` API to position nodes and render the SVG in a peach-toned background. Node labels appear beside circular markers, and link stroke widths scale with the provided weight values from the loaded `graphFile.json`. Dragging nodes is supported via the force layout’s drag behavior.