Marcel Taeumel uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-ct.1533.mcz
==================== Summary ====================
Name: Morphic-ct.1533 Author: ct Time: 20 September 2019, 8:54:34.318726 pm UUID: 38b7bc64-e4de-cf41-b55c-f9dcb6a83340 Ancestors: Morphic-ct.1532
Fix a bug in MorphicProject initialization. If the fill style is a GradientFill and does not get copied, later changes will affect both worlds, wich does not seem desirable to me in any manner.
=============== Diff against Morphic-ct.1532 ===============
Item was changed: ----- Method: MorphicProject>>setWorldBackground: (in category 'initialize') ----- setWorldBackground: force
((world hasProperty: #hasCustomBackground) and: [force not]) ifTrue: [^ self].
"If the user has a custom background, propagate it into the new project." ((Project current ~~ self and: [Project current isMorphic]) and: [Project current world hasProperty: #hasCustomBackground]) ifTrue: [ + world fillStyle: Project current world fillStyle veryDeepCopy. - world fillStyle: Project current world fillStyle. world setProperty: #hasCustomBackground toValue: true] ifFalse: [ world removeProperty: #hasCustomBackground. world fillStyle: (self userInterfaceTheme background ifNil: [self class defaultFill])].!