A circle-packing visualization displays a horizontal row of fruit icons, each rendered as a colored circle with a text label, inside a rounded rectangular bowl. A color scale and a radius scale map fruit types to distinct hues and sizes. Users can add or remove apples via buttons, triggering enter, update, and exit selections that animate the circles through D3’s data join. The example uses D3 v5 with SVG, ordinal scales, and explicit selection methods to manage dynamic data.