{"version":"1.0","type":"rich","title":"Petition of H1b","description":"A stacked bar chart animates H1-B petition counts by case status (certified, denied, withdrawn) across years, using data from the OFLC. Hovering a color-legend entry highlights that status’s bars while fading others, with tooltips showing exact values. Built with D3.js (v3), it uses `d3.layout.stack`, ordinal/linear scales, SVG axes, and `d3.legend.color`. Bars are rendered in two layers—a base layer and an interactive foreground—with a semi-transparent overlay controlling emphasis. Custom SI tick formatting labels large totals.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6f8d7fc887384153a52976047a8491d3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}