docs: public boolean getBoolean(String preferenceContainerID, IProject project, String preferenceName) {
  		assert preferenceName != null;
  		final IProject prj = ifSpecificConfiguration(preferenceContainerID, project);
  		final IPreferenceStore store = getPreferenceStore(prj);
  		return getBoolean(store, preferenceContainerID, preferenceName);
  	}