{"version":"1.0","type":"rich","title":"Color and Size Legends","description":"Two custom reusable legend components in D3 v5 display categorical color scales with colored circles and quantitative size scales with scaled circles. The color legend uses `scaleOrdinal` with fixed domain values like apple and lemon, while the size legend applies `scaleSqrt` with generated ticks. Both render as SVG groups with positioned circles and text labels, demonstrating generic legend creation patterns independent of any particular chart.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c408e8eb54514fa0a1167dd344a9ddb5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}