components/Buttons/docs/shape-theming.md

### Shape Theming

You can theme buttons with your app's shape scheme using the ShapeThemer extension.

You must first add the ShapeThemer extension to your project:

```bash
pod 'MaterialComponents/Buttons+ShapeThemer'
```

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#### Swift
```swift
// Step 1: Import the ShapeThemer extension
import MaterialComponents.MaterialButtons_ShapeThemer

// Step 2: Create or get a shape scheme
let shapeScheme = MDCShapeScheme()

// Step 3: Apply the shape scheme to your component
MDCButtonShapeThemer.applyShapeScheme(shapeScheme, to: component)
MDCFloatingButtonShapeThemer.applyShapeScheme(shapeScheme, to: component)
```

#### Objective-C

```objc
// Step 1: Import the ShapeThemer extension
#import "MaterialButtons+ShapeThemer.h"

// Step 2: Create or get a shape scheme
id<MDCShapeScheming> shapeScheme = [[MDCShapeScheme alloc] init];

// Step 3: Apply the shape scheme to your component
[MDCButtonShapeThemer applyShapeScheme:shapeScheme
     toButton:component];
[MDCFloatingButtonShapeThemer applyShapeScheme:shapeScheme
     toButton:component];
```
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