Hi Stef, I think that an automatic scaled behaviour is very useful for ImageModel, especially if you need to generate list of images, that automatically adapts to their container (i.e. Thumbnails). Playing with AlpahImageMorph I found that the desired behaviour can be obtained setting the "layout" state to the "#scaledAspect" symbol. So I've added the "ImageModel>>switchScaledLayout" method, that will simply call its MorphicAdapter, through the command "self changed: #switchScaledLayout with: {}". Then I've created the "MorphicImageAdapter>>switchScaledLayout" method, that switchs among the "#center" and "#scaledAspect" morph layouts (note: "#center" is the default for the Spec's "MorpdicImageAdapter"). Below the code the code I used: MorphicImageAdapter>>switchScaledLayout "Switch between scaled and fixed representation" self widgetDo: [ :w | | oldLayout | oldLayout := w layout. oldLayout = #scaledAspect ifTrue: [ w layout: #center ] ifFalse: [ w layout: #scaledAspect ] ]. Please let me know if you have any advice, Thanks, Matteo -- View this message in context: http://forum.world.st/Spec-scaling-imageModels-tp4918440p4919199.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.