This is not real a remix of the original design but rather an "add-on". This part has to be glued onto the reset hole of the front cover and should protect accidentally hitting the reset button.
The height of this part is 3.5mm, maybe it is suitable also for other display cases.
And what about an other add-on for this display case? :-)
Take a look here for an SD card extension holder: https://www.thingiverse.com/thing:2940306
0.2mm or 0.3mm for the flat and 0.1mm or 0.12mm for the rounded