A new version of ToolBuilder-Morphic was added to project The Inbox:
http://source.squeak.org/inbox/ToolBuilder-Morphic-ct.264.mcz

==================== Summary ====================

Name: ToolBuilder-Morphic-ct.264
Author: ct
Time: 17 September 2020, 2:17:24.709813 pm
UUID: f0cb613b-9652-a146-9d77-016577d87700
Ancestors: ToolBuilder-Morphic-mt.263

Initially refresh window color when building a window.

While this also happens later #openInWorld, the call is missing is something else is done with the window instead, e.g. #openInWindow or #imageForm.

=============== Diff against ToolBuilder-Morphic-mt.263 ===============

Item was changed:
  ----- Method: MorphicToolBuilder>>buildPluggableWindow: (in category 'widgets required') -----
  buildPluggableWindow: aSpec
  	| widget |
  
  	aSpec layout == #proportional ifFalse:[
  		"This needs to be implemented - probably by adding a single pane and then the rest"
  		^self error: 'Not implemented'.
  	].
  
  	widget := (self windowClassFor: aSpec) new.
  	self register: widget id: aSpec name.
  	
  	widget model: aSpec model.
  
  	"Set child dependent layout properties."
  	widget wantsPaneSplitters: (aSpec wantsResizeHandles ifNil: [true]).
  	self setLayoutHintsFor: widget spec: aSpec.
  	widget layoutInset: (aSpec padding ifNil: [ProportionalSplitterMorph gripThickness]).
  	widget cellGap: (aSpec spacing ifNil: [ProportionalSplitterMorph gripThickness]).
  	
  	"Now create the children."
  	panes := OrderedCollection new.
  	aSpec children isSymbol
  		ifTrue: [
  			widget getChildrenSelector: aSpec children.
  			widget update: aSpec children]
  		ifFalse: [
  			self buildAll: aSpec children in: widget].
  	widget setUpdatablePanesFrom: panes.
  	
  	aSpec label ifNotNil: [:label|
  		label isSymbol 
  			ifTrue:[widget getLabelSelector: label]
  			ifFalse:[widget setLabel: label]].
  
  	aSpec multiWindowStyle notNil ifTrue:
  		[widget savedMultiWindowState: (SavedMultiWindowState on: aSpec model)].
  
  	widget closeWindowSelector: aSpec closeAction.
  	self buildHelpFor: widget spec: aSpec. 
  
  	widget bounds: (RealEstateAgent 
  		initialFrameFor: widget 
  		initialExtent: (aSpec extent ifNil:[widget initialExtent])
  		world: self currentWorld).
  
+ 	widget refreshWindowColor.
+ 
  	^ widget!