Can I control font size for column headers when I generate the embed code for a dashboard?

I love the ability to share a dashboard by generating embed code and the dropping that into our SharePoint page. What I'm struggling with is a that the font size of the column headers is so small it's almost unreadable. Is there any way for me to control that? i've tried to do so within the embed code, but it doesn't appear to work. I see how I can change the font size of the Task items, but the font size in the headers eludes me. Any advice?