Phil wrote:

Instead of using PluggableButtonMorphs, you can try with ButtonModels (the Spec way).

For Pharo 3 I’d prefer not adding additional dependencies to Nautilus. I think I remember reading something about a spec-based Nautilus. Switching the themes shows that there are still a few too many hard-coded values in Nautilus. The width of the SBIC bar should be theme dependent. Stephan