This bug report originated with scala-cli where there are screen shots and a detailed discussion.
Reproduction steps
To Reproduce this, either of these command lines in a Windows terminal results in a REPL with no color by default.
scala-cli -S 2.13.15
/opt/scala-2.13/bin/scala
Expected behaviour
Output should be colored, like sbt console, and like scala 3.x.
Scala version: 2.13.x
Problem
This default behavior was deemed appropriate for Windows in 2017, but seems less so now.
see scala/scala#5663