Thanks for the update and glad to hear that helped!
We’ve had a number of requests for more control over styling dashboards (including colors and font sizes). [1, 2, 3] As such, Themes / Styles is on our hit list for enhancements and it’s working its way toward the top of the list. I’ve noted your feedback in the context of the Themes / Styles request. 
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In meantime, I also wanted to note that there’s a few other tweaks that can be made in the Dashboard Settings. You can access these by tapping the ... in the bottom right corning of the dashboard and tapping Configuration, then flip the ‘Advanced’ toggle in the top-right corner on.
- Tile Size - the base size of the tiles
- Tile Spacer (Gutter) - the space between the tiles
- Truncate Tile Labels - when switched off, the labels will wrap to the next line
Edit: The Themes and Styles feature has now been released which provides much deeper control of various sizing and styling elements.