Scala supports both OO/imperative and functional styles of writing programs. Many Scala beginners come from an imperative background and write Scala programs like OO programs, getting deprived of the benefits brought by its functional core (e.g. easy parallelization). This work presents a developer-focused tool for Scala, called ScalaF, that detects non-idiomatic code and suggests refactorings aligned with the functional paradigm. Built as a VSCode plugin with a Scala backend, ScalaF identifies and suggests refactorings for control-flow constructs such as loops and conditionals, replacing them with higher-order functions and pattern matches where applicable. We discuss the motivation, design, and integration of ScalaF into the developer workflow. ScalaF is extensible, and its source code is publicly available. The goal is to reduce technical debt, promote best practices, and lower the barrier to writing functional Scala code.