Why is defaultMargins an option for Ext 5.1.x project?

[firefoxSafari]

I started a new project based on Ext 5.1.x. I was trying to layout something with an hbox layout. Architect let me filter down to and enter something for defaultMargins config. As near as I can tell from the docs, this config isn't supported anymore. I'm aware you can set the style on a defaults config and achieve much the same thing, but it doesn't seem like Architect should let you select this if it's not valid for the library you're working with.

[joel.watson]

Thanks for the report! I have opened a bug in our bug tracker.