Data: Custom SHP file of country maps
Based on ADM0 layer of GADM 4.1 from https://gadm.org/data.html and downsampled in QGIS with Douglas-Peucker with tolerance 0.001
Based on ADM0 layer of GADM 4.1 from https://gadm.org/data.html and downsampled in QGIS with Douglas-Peucker with tolerance 0.001