{"version":"1.0","type":"rich","title":"Mobility Rate Bubble Chart","description":"This bubble chart visualizes the relationship between median parent household income and student mobility rate for universities in California, using data from Opportunity Insights. Each circle represents a college, positioned by income and mobility, sized by average cohort count, and colored by the trend in parents from the bottom income quintile. The visualization uses D3 v5 scales including scaleLinear, scaleSqrt, and scaleDiverging with interpolatePiYG, plus custom gradient-based color legends and d3-legend for circle sizing. Data is loaded from a CSV file and filtered to California institutions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f279b4c9a2754801a9f3607aedc9c794?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}