I am working on angular material
Is there anyway i can change the color of the mat input form without creating a new theme file ?
I have the deeppurple-ember theme running right now.
I just want to change the color of the primary color to a dark green instead of the default purple.

I created a sample scss file, but since it is a basic file i am losing all the graphic functionality that comes with the prebuilt theme.

This is what i have

```
@import '~@angular/material/theming';
@include mat-core();

  $primary: mat-palette($mat-green,200);
  $accent: mat-palette($mat-red,200);

  $theme: mat-light-theme($primary, $accent);

@include angular-material-theme($theme);

```

This is my input form in the prebuilt theme

```
<mat-form-field class="a">
<input matInput placeholder="Search" style="display:inline; width:200px">
</mat-form-field>

```

Css file

```
.a{
  color:#129D90;
}

```

This changes the font of the input field but not the color of the underline and the form label.

I am sure there must be some way of changing the color of the label and the underline without changing the entire theme of my application.