Currently pharo includes the standard workspace from Squeak
and the ScriptLoader class includes methods to load Shout
(a workspace with syntax highlighting).

If Shout will make it into the pharo standard image we can also
make it the default workspace. This can be achieved by patching:

StandardToolSet(class)>>openWorkspace

if the workspace is opened using the Tools -> Workspace menu.
Since the workspace can also accessed using keys this can be switched
using:

World respondToCommand: $k bySending: #open to: (self environment at: 
#SHWorkspace) 	

Maybe it is also possible to register and choose a "default workspace 
type" later (similar to the browser)