> The new "Refresh" design looks more closely to a user interface designed using the rules and guides from Google's visual design language known as "Material Design." That's the most worrying thing about it. Material Design has serious accessibility problems (motion and color) and is full of some really bad design ideas. It encourages people to abandon aesthetic restraint. If you walk around smashing cymbals together…
I have a hard time telling which elements are clickable, and which are not, with material design. Flat buttons , of course, are similar to labels.
Considering how obvious the other buttons are, the flat ones feel really out of place. I didn't even know what you were talking about until I went here: https://getmdl.io/components/index.html#buttons-section