Can't custom scale "fine"

Customer wants VERY large roadmap symbols (coda, etc). I do custom scale 300%. Looks good. But “fine” (from repeat sections) stays same size no matter what. I guess I can just make my own, but why does “fine” not scale?

Rather than scaling each element increase the font size of

In Paragraph Styles (menu Library)

That would be the right way to do it. Thank you.

I am being lazy.