Missing Device Panel background objects?

Was trying to figure out how everybody is making device panels with those cool rounded corners and the colored title bars, and I seem to be missing those background objects in the Panel Editor?

I did some Google searching and noticed pictures of other/older panel editor screens with that big empty space on the left filled with three different larger backgrounds, the ones with the rounded corners and title bars! Were these removed or something? Do we not get them on the Mac??

I just tried reinstalling Cubase on top of itself, no luck. Not sure if I should start deleting prefs and/or clean installing everything just to see if some graphics come back.

This is Cubase Pro 12.0.52, on an Intel Mac/Ventura 13.2.1. I came back to Cubase around the end of 11’s time, not sure if I ever opened the MIDI Devices back then, but in 12 those backgrounds have never been there for me.