The map was downloaded world from https://ec.europa.eu/eurostat/web/gisco/geodata/reference-data/administrative-units-statistical-units/countries version { "Administrative or statistical unit": "Countries 2016", "Version date": 01/12/2018, "Scale": "1:1 Million", "File format to download": "geoJSON" }
The geoJSON was simplified using mapshaper to reduce the file size.