Wrong style on selected time button.

[omar10594]

Using a different theme than the default, the button background color is from the default theme.

Using a different theme as default, the button doesn't have background color:

Codepen: https://codepen.io/omar10594/pen/WXzzXb

[dpoetzsch]

I see the problem in the first screenshot and can reproduce it in codepen. What is that second screenshot about?

[omar10594]

On codepen, uncomment the line 25
//$mdThemingProvider.setDefaultTheme('alt-theme');

And, when select a time, the button doesn't have background, looks like a flat button instead of a raised button.

[dpoetzsch]

I see the problem now.

Would you be willing to fix this?