Resize the toolbar

Hello,

We would like to remove buttons from the toolbar and keep a few options remaining. I found code examples in previous tickets that show how to filter out (or in) what toolbar options display. What I'm now looking to do is shrink the size/scale of the toolbar itself so it takes up much less height than it does by default. The icon styles and the actions of the buttons are just fine - I'd prefer not to have to roll anything custom to replace the functionality with my own toolbar but leverage your solution with a smaller visual footprint. 

Is there an example you can share that would demonstrate how to shrink the toolbar's scale (and thus height) for whichever tabs are displayed?

Thanks,
Bill