This example demonstrates a "bowl of fruit" visualization using the general update pattern with special cases for legends. It renders separate color and size legends that display ordinal fruit categories and quantitative size scales. The code uses d3.scaleOrdinal and d3.scaleSqrt for color and size mappings, with enter/merge/exit selections to handle dynamic data updates. SVG elements (circles and text) are appended and updated through D3's selection API, with legends positioned using transforms.