Up to version 1.4.2 cartography was mainly based on sp and and rgeos for its spatial data management and geoprocessing operations. These dependencies are as much as possible replaced by sf functions since version 2.0.0. Most functions are kept unchanged except for the addition of an x argument used to take sf objects as inputs.
propSymbolsLayer: breakval and col2 arguments are defunct, use propSymbolsTypoLayer if needed.
possibility to use text labels in legendChoro