I swear this used to be a feature in previous Dashboards versions. I vividly remember being able to choose between a small or large header, and the height of the header would change accordingly. Is that feature gone? If so, I would like it back!
It now depends on if you have a subtitle or logo which allow either the large or small header. I tried using a single space as a subtitle to simply create some more space without anything showing and that didn't work because it requires actual entered text. This is all I've found, but there may be other ways around it.