How to put the page dots in the middle of the screen

[seiji619]

https://github.com/mamaral/Onboard/blob/master/examples.md#gemr

In this example, they put the dots above the signup/login buttons. How do I do that? I don't see any custom property than the bottomPadding (which is for the space right above the page dots).

Thanks.

[mamaral]

Try underPageControlPadding.