I have customization of theme in md-angular

```
$mdThemingProvider.theme('default')
    .backgroundPalette('customPallete', {
        'default': '200',
        'hue-1': '300',
        'hue-2': '500',
        'hue-3': '700'
});

```

Where customPallete - is my own defined palette with custom colours.

Background colour '200' is succesfully applied to md-content.
But I can't add another colour of the background for some other components.
For example, I want to create another colour block with some data.
Here's code

```
<md-content class="md-hue-3">
 ... some code here ...
</md-content>

```

But background is the same, colour is '100' from default config of backgroundPalette.
Does someone know how to customize blocks with different background colours using **$mdThemingProvider** ?