Data of Life Expectancy is from: https://www.kaggle.com/datasets/kumarajarshi/life-expectancy-who Json file is from:https://github.com/johan/world.geo.json/blob/master/countries.geo.json Note: Some of the countries data were missing so I had to fill in data by looking up the life expectancy of countries on Google which had information from the World Bank

Used Scott Murray's Data Viz chapter 14 for reference once again