No colors when hooks are run by a git commit #1381

Hi,
I use pre-commit at home on linux which works perfect. But at work I have a windows pc. Here I have problems with the colorfull output.

When the hooks are run by tox calling pre-commit run there are colors as usual. When the hooks are run by a git commit the colors are missing.

Concrete I mean the green for 'Passed', red for 'Failed ' and yellow/brown for 'Skipped' in the overview.

There is no difference if I run it via git-bash, cmd or powershell. Also there is no difference if I use the pycharm buildin terminal or others.