Grohe Grohtherm Thermostatic Rough-In Valve 3/4'' Valve - 34125000 "remove faceplate shower" Questions

...remove 2 Grohe 19 724 Pressure Balance Valve trims (one shower, one bath). I can't figure out how the escutcheons come off? Are they connected to the plastic part and snapped in? I notice 2 brass ...