Form input colors

Additional form input colors by changing the class.
Example
<!-- Source -->
<input class="form-control input-dark input-primary" type="text" placeholder="Primary"/>
<input class="form-control input-dark input-secondary" type="text" placeholder="Secondary"/>
<input class="form-control input-dark input-success" type="text" placeholder="Success"/>
<input class="form-control input-dark input-info" type="text" placeholder="Info"/>
<input class="form-control input-dark input-warning" type="text" placeholder="Warning"/>
<input class="form-control input-dark input-danger" type="text" placeholder="Danger"/>
<input class="form-control input-dark input-black" type="text" placeholder="Black"/>
<input class="form-control input-dark input-indigo" type="text" placeholder="Indigo"/>
<input class="form-control input-dark input-orange" type="text" placeholder="Orange"/>
<input class="form-control input-dark input-pink" type="text" placeholder="Pink"/>
<input class="form-control input-dark input-purple" type="text" placeholder="Purple"/>
<input class="form-control input-dark input-teal" type="text" placeholder="Teal"/>