It would be cool for the buttons to have like a subtle shade change like this:
Instead of a color change. It makes no sense in material design to have a color change in this situation, and more of a "physical" effect. Here's an example (except it starts without shade on a normal mode, which isn't our case) http://codepen.io/440design/pen/iEztk
Its shadow changes from this:
box-shadow: 0px 2px 2px 0px rgba(0,0,0,0.24);
To this:
box-shadow: 0px 2px 4px 4px rgba(0,0,0,0.50);
In situations with buttons like these:
It would be cool for the buttons to have like a subtle shade change like this:
Instead of a color change. It makes no sense in material design to have a color change in this situation, and more of a "physical" effect. Here's an example (except it starts without shade on a normal mode, which isn't our case) http://codepen.io/440design/pen/iEztk
Its shadow changes from this: box-shadow: 0px 2px 2px 0px rgba(0,0,0,0.24); To this: box-shadow: 0px 2px 4px 4px rgba(0,0,0,0.50);