Can't Zoom Out on Files Section of Teams - Rest Fine

I have somehow zoomed out on the files section. The font size is really hard to see. 

If I click out of the files area of Teams I can Ctl - or + and zoom in and out. This works for all of Teams EXCEPT for the files tab. If I click into the files tab and do Ctl - or + nothing happens. 

How can I reset the font size! Restarting doesn't work.