Ondras original insert is great, but unfortunately doesn't fit sleeved cards. This remix fixes that. I modified the walls and expanded the width (as there was still some space). Fits card sleeved in Mayday Games MDG-7041 sleeves.

I use one original card tray (as I didn't sleeve the expansion) and one modified tray for the most used cards. This fits the box perfectly.

Find the source file on Tinkercad: https://www.tinkercad.com/things/fEOTpsPI5Ct-mini-rogue-sleeved-card-insert