How to increase the fontsize of this mediacard?

Hi guys,

I am using HA for some months now and I really like it!

I am using a mushroom dashboard with 2 tabs;

One as main dashboard, and one tab that is visible on a 7" touchscreen in my mediacenter pc wich is showing what is currently playing.

Problem is that I cannot find a way to increase the font size for that dashboard, so from the couch, its hard to see what is currently playing.

Here an image to show what I mean;

I thought, maybe I can run that tab using a different theme, and increase the font size of that specific theme… But I have no idea where to start with.

Is there anyone around who can help me a bit further? :smiley:

Anyone please?? :relaxed: