So when you zoom the magma view, the text on the operator cards also zooms - should stay the same size.
Tell that to Kees 
Just kidding.
It is just that I used regular nodes to represent the Categories. And when you zoom in and out of Helium, the text on the nodes gets scaled automatically - no way around it. I am counter-acting the size change by scaling the nodes up while the zoom is scaling them down, so they appear the same size all the time. Unfortunately, there is no access to the font size, otherwise I would have done the same with the text.
That’s why we licensed the code of Helium, so one day we can implement our own “Category” node that does not scale on zoom. We just did not have the time to implement that. It has been like this since 1.5.0 and is an unfortunate side effect of how we are bending Helium to do what we want… 
At a point, I was considering disabling the zoom just to get rid of this behavior. But I felt being able to zoom out is more important than being able to use the depot while zoomed out.
An alternative would be to hide the depot when zoom is not 100%. But it would be still weird.
Feel free to include this in the “Cons” column 
Ehehe 
Yeah, a total stumble! Good to know, moving along Thanks!