field css and attributes do not work at all, at least not in the free version I just installed for testing.
inspecting shows this:
<button class="nui button colored " name="button_2" value="" id="button_2" type="submit" data-test="test"> Button 2</button>
view source, shows this:
<button class="nui button colored " name="button_2" value="" id="button_2" type="submit" data-test="test" class="test">
I'd like to harness the site style, not to use nui styles.