Is there a way to increase the text size displayed on the menu?

I'm trying to publish a small module and half way through publishing, I get the error message attached.  

I'm using a 16 x 9 format for my slides, are the engage interactions based on a 4 x 3 format?

How can I increase the tab descriptions text size?

How do I set the slide advance to be manual?

How do you modify the markers like going above 9 in the numbers?