Struggling to Make Button Toggle in Build Apps (community)

I’m trying to make an onboarding experience in an app I’m designing where the user may select multiple tags for themselves. While I can use a simple checkbox, I would like to instead use toggleable buttons that change color/visual state when selected, but I’m not sure how to do this. I am unable to find any variables or formulas where I can change the style of a button after it is tapped in the logic.

For reference, here is what the buttons look like when they are not toggled. 

Ideally, the rounded buttons with content in them would change to a blue background with white text after being selected.

Could someone please tell me the proper logic flow I need to accomplish this?

Dave Gerding (for student Sebastion S)