What Environmental Variable Sets Git Color.UI?
Unfortunately, unlike some other settings, there is no environmental variable that allows you to override the color.ui config option.
The only way is to of course use the command line: git config --global color.ui true You can also edit the ~/.gitconfig file directly and add all of these color options. All of this info can be found here. Add colors to your ~/.gitconfig file:
[color] ui = auto[color "branch"] current = yellow reverse local = yellow remote = green[color "diff"] meta = yellow bold frag = magenta bold old = red bold new = green bold[color "status"] added = yellow changed = green untracked = cyanHighlight whitespace in diffs
[color] ui = true[color "diff"] whitespace = red reverse[core] whitespace=fix,-indent-with-non-tab,trailing-space,cr-at-eol
GIT_CONFIG_PARAMETERS="'color.ui=never'"
Change never to auto or always if you like.
This is not a documented feature, but has been around for quite a while and is covered by the git unit tests.