Greetings from Brazil! More to follow on the fascinating city of São Paulo. For now, I present some images of eighteenth century Brazilian army uniforms, courtesy of the excellent Portuguese-language blog Arquivo Histórico, :
Note the 'auxilaries' in the bottom left of this last image -- apparently mestizo and African-descended soldiers, sporting uniforms with much brighter colors than their rather drab colleagues!
These officers look almost exactly like Revolutionary War era British redcoats to my untutored eye. Here's the full book on archive.org.