Cannot find tippy.css

In my plug-ins folder I have
jquery.tipp.css
tippy.admin.css

In the instructions it says to customise add tippy.css from the plugin folder to your theme.

Help would be appreciated as I need to be able to customise the look.

Thanks

https://wordpress.org/plugins/tippy/