I tried to setup PrimeFlex (3.0.1) for PrimeFaces (10.0.0). I used css files as provided in dist folder of PrimeFlex repo. Also I followed the instructions give
featherlight
kmz
require-method
abap-adt
uitextfield
svgutils
weighted-average
teamspeak
autotouch
exceptionmapper
procmail
boost-graph
tdlib
enumerator
cups
bash4
dotnet-core-pack
react-google-maps-api
spatial-interpolation
azure-pipeline-python-script-task
qubes-os
taleo
lisp-macros
cypress-testing-library
ktorm
groupwise
hsts
comsol
llvm-config
proxy-object