Marcel Taeumel uploaded a new version of ToolBuilder-MVC to project The Trunk:
http://source.squeak.org/trunk/ToolBuilder-MVC-mt.44.mcz

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

Name: ToolBuilder-MVC-mt.44
Author: mt
Time: 18 February 2016, 1:26:13.923715 pm
UUID: 81cb2641-e405-4ced-b563-5ee6884e7e66
Ancestors: ToolBuilder-MVC-topa.43

Removes two-tone cache optimization for system windows because produces drawing glitches to font rendering.

=============== Diff against ToolBuilder-MVC-topa.43 ===============

Item was changed:
  ----- Method: MVCUIManager>>newDisplayDepthNoRestore: (in category 'display') -----
  newDisplayDepthNoRestore: pixelSize
  	"Change depths.  Check if there is enough space!!  , di"
  	| area need |
  	pixelSize = Display depth ifTrue: [^ self  "no change"].
  	pixelSize abs < Display depth ifFalse:
  		["Make sure there is enough space"
  		area := Display boundingBox area. "pixels"
  		ScheduledControllers scheduledWindowControllers do:
+ 			[:aController | area := area + aController view windowBox area].
- 			[:aController | "This should be refined..."
- 			aController view cacheBitsAsTwoTone ifFalse:
- 				[area := area + aController view windowBox area]].
  		need := (area * (pixelSize abs - Display depth) // 8)  "new bytes needed"
  				+ Smalltalk lowSpaceThreshold.
  		(Smalltalk garbageCollectMost <= need
  			and: [Smalltalk garbageCollect <= need])
  			ifTrue: [self error: 'Insufficient free space']].
  	Display setExtent: Display extent depth: pixelSize.
  	ScheduledControllers updateGray.
  	DisplayScreen startUp!