{"version":"1.0","type":"rich","title":"Firefly Cartography","description":"This example shows a dark, starry map of cities with populations over 50,000, using glowing points that mimic fireflies. It loads city data from a CSV and renders the points over an inverted Stamen toner basemap with OpenLayers. The glowing effect is created with a custom Canvas sprite, a radial gradient, and a Gaussian curve in `generateSprite.js`, while React manages the map lifecycle and D3 loads the data.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/aa7127f47efb49fd9d3a966b272955a7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}