{"version":"1.0","type":"rich","title":"HQ","description":"This chart visualizes changes in population and income inequality across U.S. metropolitan areas from 1980 to 2015. It uses a logarithmic x-axis for population and a reversed y-axis for inequality, with arrows indicating the direction of change for each metro, colored by the magnitude of inequality shift. Built with D3.js v5 and the Observable Plot API, the visualization encodes data from the `metros.csv` file, with labels for select metros and a color legend for inequality change.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bce7603e06d94325b8fdcce36e64b8a7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}