{"version":"1.0","type":"rich","title":"Block IV Projections","description":"A multi-line chart displays budget projections for Block IV SSN over time, with each line representing a distinct SSN and its delivery estimates. The chart uses D3's `scaleTime` for both axes, `line` with `curveBasis` for smoothing, and `nest` to group data by SSN, colored via `schemeCategory10`. A custom `colorLegend` function renders the legend. The data, sourced from a CSV file, is parsed into `Date` objects for the x and y axes, showing delivery dates against budget years.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/96ddea8ae4bb4f6abe965866d18ffa2e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}