Reading through the other answer I think they covered it off nicely. Just adding a comment to show what I ended up doing in case it helps anyone else who isn't very familiar with CSS and HTML. I converted the dashboard to HTML and then added a section to make the title WAY bigger. Using this on a TV in the dev area and wanted people all around this end of the floor to be able to easily see it. I've bolded the text I added.
/>
href="{{SPLUNKWEB_URL_PREFIX}}/static/build/css/bootstrap-enterprise.css"
/>
href="{{SPLUNKWEB_URL_PREFIX}}/static/css/build/pages/dashboard-simple-bootstrap.min.css"
/>
href="{{SPLUNKWEB_URL_PREFIX}}/static/app/search/dashboard.css"
/> ****
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