Just released 7.0.1 of elm-webpack-loader.
This release focused on cleaning up the code of the loader. It now has fewer options to set, and sets debug and optimize flags depending on the current mode of webpack (but can of course be overriden). It also removes some dependencies, making it a smaller install than before.
Finally, the output from the compiler now retains the colored output, and the uneccessary webpack stacktrace is removed from the printed error message on compile errors.