{"version":"1.0","type":"rich","title":"Color and Size Legends","description":"This example demonstrates two types of legends: a color legend for ordinal categories (apple, lemon, lime, orange) and a size legend for a square-root scale mapping values 0–10 to circle radii. Both legends use SVG groups with tick marks, rendered via D3 v6’s `scaleOrdinal` and `scaleSqrt`, and are constructed through reusable functions that append circles and labels with dynamic positioning. The color legend assigns categorical colors, while the size legend computes tick values using `sizeScale.ticks`, filters out zero, and reverses the order. Styling is applied through CSS classes for text and circle strokes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c8aa47489d7c41908635e4f536cd18f3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}