md-input placeholder should not turn red when field is invalid per material design spec

[bfelda]

The material design error page linked below shows error fields but the placeholder is not red. The red placeholder/label in md-input has been flagged during our usability testing as it doesn't appear to be a placeholder any longer. Also, with the red line and red error text, we don't need that much screaming.

http://www.google.com/design/spec/patterns/errors.html#errors-user-input-errors

[ingoncalves]

I'm getting same error with angular-material 1.0.7.
In the screenshot, I copied an pasted the code in documentation and got it..

Both red label and asterisks not working properly.

[krystyna-lyn]

tttt