The easiest, fastest way to set up your fish environment.
No dependencies required.
With Fisher
$ fisher add h-matsuo/fish-theme-productive
With Oh My Fish
$ omf install https://github.com/h-matsuo/fish-theme-productive
$ omf theme fish-theme-productive
This theme doesn't affect fish's syntax highlighting color scheme.
If you want to configure it, try h-matsuo/fish-color-scheme-switcher.