This choropleth map displays world economies with colors from a spectral scale, letting users filter countries by clicking legend categories to dim non-matching regions. The visualization uses a natural Earth projection rendered as SVG paths via `d3.geoPath`, with geographic data from the world-atlas package and economic classifications from a TSV file. Interactive zooming and panning are enabled through `d3.zoom`, while legend clicks toggle color-based highlighting, emphasizing selected economy types while reducing opacity of unrelated countries.