{"version":"1.0","type":"rich","title":"HTML Starter","description":"An interactive bar chart tracks Slack message counts across three categories—public channels, private channels, and direct messages—over a date range. A slider input updates highlighted circles for each category, with tooltips showing message counts for selected dates. Built with React, D3 v3, and SVG, the visualization uses `d3.scale.ordinal` for x positioning, `d3.svg.axis` for axes, and transitions for circle radius changes. Data comes from a remote CSV file via `d3.csv`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a84a1ffc7e544fc4866be85e5af7c647?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}