In App Connect, dynamic CSS classes can be assigned to elements using Toggle Class with the condition filters.

How would I do this with HTML5 Data Bindings Formatter?

I need to change the color of a table row when a field is a certain number.

You can assign dynamic class to the field, by selecting it and at the bottom of the data bindings panel you can select the class property and then apply formatter to it.

Got it working like so:

<tr data-binding-class-bg-danger="{{(recommended==1)}}" ... >

All the table rows where field: recommended = 1 have a background color with class bg-danger