Note that the new default vertical centering option will break compatibility with slides that were using transitions with backgrounds (`cube` and `page`). To restore the previous behavior, set `center` to `false`.
You can specify a transition to and from a specific slide by using the ```data-transition``` attribute:
```javascript
<sectiondata-transition="zoom">
<h2>This slide will override the presentation transition and zoom!</h2>
</section>
```
The configuration can be updated after initialization using the ```configure``` method: