Hello,

I have successfully proceeded in running TweakCore on the recent Squeak 4.4 trunk image (from Jenkins).
And one of the famous existed applications developed in Tweak is the OpenGL procedural textures generator by David Faught.
I make it also loadable to the current Squeak. 

You could download the ready to run image from here: http://krestianstvo.org/TweakCoreOpenGL-squeak44.zip
or
execute in the workspace in own image:

"1. Load FFI"
(Installer repository: 'http://source.squeak.org/FFI'

)
    install: 'FFI-Pools';
    install: 'FFI-Kernel';
    install: 'FFI-Tests'..

"2. Load CroquetGL "
(Installer repository: 'http://www.squeaksource.com/CroquetGL')
    install: '3DTransform';
    install: 'OpenGL-Pools';
    install: 'OpenGL-Core'.

"3. Load TweakCore and Procedural textures application for Tweak"
(Installer repository: 'http://sdk.krestianstvo.org/sdk/inbox')
    install: 'tweakcore';
    install: 'Tweak-OpenGL-sn.3'.

"4. Set the default settings in Tweak"   
CDefaultWidgetLibrary setDefaultSettings.

"5. Run one of two examples"
CProjectMorph open: Wrinkle1.
"or"
CProjectMorph open: Wrinkle2.

The attached screenshot shows the running application.

Regards,
Nikolay