This interactive tree diagram visualizes hierarchical training data, displaying nodes as text labels connected by curved paths. The visualization uses D3 v5’s `tree()` layout combined with `linkHorizontal()` to generate the branching structure, and `zoom()` enables panning and scaling. Data is loaded from a CSV file via `d3.csv()` and structured using the `stratify()` method, with node labels rendered as SVG text elements. The diagram employs a fixed viewport that fills the browser window, with node names displayed in a serif font and connections drawn in green strokes.