Scaled font size of parent/child nodes - child nodes should have smaller font size then parents

I love workflow, but one thing that makes no sense to me is why the font size of each sub-node isn'y smaller than its parent node. And these font's should automatically rescale when you open a node to view out outline under that node. Similar to the way the node you select becomes a large header and the sub-nodes have a smaller font size. 

This helps the brain more easily interpret the outlines. Just makes sense. 

So when I click the + symbol all of the sub-nodes should open up in a slightly smaller font size than the parent node, and so on. 

Seems like common design sense to me. 

For $5/month there should be a LOT more put into this app. It hasn't changed much since it launched years ago. That's why I never purchased a premium subscription until recently. I thought I'd give it a try. But I find I don't use it as much as I'd like, because of a lack of features. The deign is nice and minimal, but it needs to be SMART. 

Parent, and child, nodes should have different font sizes automatically. The feature should be easy to add. Give it a shot, please.