I am trying to set the background color of the StringMorph that represents the label & value of the description. From looking at MADescription>>morphColor ^ self propertyAt: #morphColor ifAbsent: [ self class defaultMorphColor ] I thought I might go like "THIS LINE" below... ------------------- magritteDescription <magritteContainer> | container | container := MAContainer new. container add: (MAStringDescription new accessor: #emptyString ; label: 'Equipment123456789' ; beReadonly ; propertyAt: #morphColor put: Color white; "<<<<<<<<<<<<<<<<<<THIS LINE" yourself). "more deleted" ^ container ------------------- but "THIS LINE" has no effect. Digging in further, it appears that MADescriptionMorph>>defaultBackgroundColor is the only sender of #morphColor, but then there are no senders of #defaultBackgroundColor. What is the correct way to go about changing the background color of the description's morph? cheers -ben btw, What I am trying to create a separator label between several groups of descriptions as shown in the attached image.