Bert, this is excellent!
I noticed that in 2.4b that your change set filed in with
no problems when I was in a morphic world, but
got the following walkback in the default MVC window:

UndefinedObject(Object)>>doesNotUnderstand:
SystemWindow class>>windowsIn:satisfying:
Preferences class>>noteThatFlag:justChangedTo:
Preferences class>>setPreference:toValue:
Preferences class>>disable:
UndefinedObject>>DoIt
Compiler>>evaluate:in:to:notifying:ifFail:
Compiler class>>evaluate:for:notifying:logged:
Compiler class>>evaluate:for:logged:
Compiler class>>evaluate:logged:

It appears to be due to #submorphs being sent
to an undefined object (aWorld)
windowsIn: aWorld satisfying: windowBlock
 ^ aWorld submorphs select:
  [:m | (m isKindOf: SystemWindow) and: [windowBlock value: m]]

Peter




>Hi all Squeak color haters ;-)
>
>I personally got very used to Squeaks coloring scheme, and I don't
>experience hurting eyes as some of you reported ... But still, the colors
>seem to be quite an obstacle for beginners. I heared that complaints for
>years (okay, not *that* many years). Anyway, I wondered how hard it would
>be to get a "conventional" gray 3d look - it wasn't (well, at least for
>Morphic). Now here it comes:
>
>"Change Set: 3dlook-bf
>Date: 21 May 1999
>Author: Bert Freudenberg
>
>Adds a 3D look to Morphic windows. Enable uniformWindowColors in
>preferences to try."
>
>It basically works by setting all panes borderColor to #raised. The rest
>is preferences handling, some cosmetic stuff (one pixel wide borders
>didn't look good with the default hilite/shadow colors), and some extra
>code for handling a browser's switches (these seem to me like a rather
>crude hack that doesn't really fit into the SystemWindow/ScrollPane
>scheme).
>
>Enjoy,
>/bert
>
>-- 
> Bert Freudenberg                                       Department of 
>                                                        Simulation and
>                                                        Computer Graphics
> http://isgwww.cs.uni-magdeburg.de/isg/bert.html        Univ. of Magdeburg
>
>