Remove yellow dashed border on selected tab

My theme was from 2017 and had bugs.  I am starting over based on the Blue-1 template and need to re-add the customizations.

First, how can I remove the yellow dashed line on a selected tab? (see pic)
  Found the answer: TabView.Page.Button.focused.styles.innerStyle -> set to None

Second, how can I increase the height of menuitems in a ContextMenu, so they are easier to press from a touchscreen?

Third, is there a way to dynamically change the height of a menuitem at runtime, so menus appear a specific height on mobile phones, and a different height on desktop?

thanks,

Andrew