You may noticed the prompts in Studio to convert you apps to Fluent and "modern" Git.  I finally decided to go for it and convert the app and link to an existing git repo.

The question was immediately "how do I pull the latest from the repo?"  It took me a while to figure it out so I thought I'd share. It's there, but it's buried and isn't easily accesable using Command-Shift-P as you can do in ServiceNow IDE.

The little "Fork" changes icon was blank.  The trick was that I needed reselect my application to get the full source control menu but that was not super clear from the empty drop down at the top of the panel.

So, go to the Changes icon in the left hand, select your application from the drop down at the top, use the "ear" to drop down the app in list, then select the snowman on THAT to get your source control options.

If you got lost like I did, hopefully this helps!