Now your best friend has a sign too!
Background height = 1.8mm
Details height = 2.2mm
Manual filament change at layer 10 if you print with 0.2mm layer high, or detail with paint or sharpie.
Onshape link:
https://cad.onshape.com/documents/ac44a11328c81addd38cf0bb/w/3a71f2db5b006268957b93e4/e/d6ea40d369f8a88983837747
:)