{"version":"1.0","type":"rich","title":"Color legend","description":"A custom color legend displays four ordinal categories—apple, lemon, lime, and orange—as colored circles or squares, rendered with D3 v7's `scaleOrdinal` for domain and range mapping. The legend component supports configurable shapes, spacing, and offsets, using SVG `g`, `rect`, `circle`, and `text` elements. The example demonstrates a reusable legend pattern with enter/merge/exit updates, invoked via `.call(colorLegend.render, {square: false})` to show circular swatches with labels.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/89cdba99408642348b7c457c9f616d77?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}