message: Added the style property to the Checkbox definition in index.d.ts.
  Alternate PR for
diff: @@ -605,6 +605,7 @@ declare module "native-base" {
  checked?: boolean;
  color?: string;
  onPress?: Function;
  + style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
  }
  /**
  * see Widget CheckBox.js
  