This fork of a choropleth map combines a geoEqualEarth projection with a scatter plot, enabling users to explore relationships between country attributes like GDP per capita, population, and urban rate. The map uses a linear color scale to shade countries by urban population rate, while the scatter plot encodes continent with ordinal colors and population with scaled radii. Users can dynamically select X and Y attributes and toggle the Y axis. The visualization uses d3.geoPath for map rendering, d3.scaleLinear for numeric mappings, and d3.scaleOrdinal for categorical coloring.