This map of the Basilicata region colors each municipality based on the population of kindergarten students in 2022, using a linear opacity scale from `d3.scaleLinear`. A control panel with a dropdown menu, built using a custom `dropdownMenu` module, lets users select a town, though the map itself does not react to changes. The SVG is loaded asynchronously via `d3.xml`, and each path’s opacity is set by matching its `id` to the dataset. Hovering highlights a region with a white stroke, and tooltips show the location name.