"eye candy" wise this is exactly the focus of my Ephestos project , Morpheas section. A custom gui , gui designers for easy creating of GUIs by the user and additional moprh widget with customized look including eye candy.

I can't make any promises, as I have no clue what kind of obstacles and technical limitations I am going to find in the process but I can tell you I am willing to invest years and if all goes well even decades of efforts since its an area that I love to code for.

As a first part I am in the process of creating a tutorial generator which will be ProfStef on steroids for at first offering tutorial for Athens and later used for any kind of Pharo tutorial.

I am also interested in helping Athens porting to OpenGL and generally using NBOpenGL as the next step for Morphic. Excitting stuff the only thing it worries me is the type of technical blocks / obstacles I may come across but trying is certainly well worths it.