Using compatibility layer from Eclipse 3.8 to 4.x

Question

I have an Eclipse 3.x plugin which has a product file through which I launch the application. The product uses the eclipse workbench for its application parameter org.eclipse.ui.ide.workbench and I even tried org.eclipse.ui.e4.workbench.E4Application.

I followed the steps of adding org.eclipse.emf.ecore and the org.eclipse.emf.common features in my product Dependencies as outlined in this tutorial.

When I launch the application, it starts up and seems to work fine but there is no look and feel of E4 and some E4 features like the Theme preference under General-> Appearance in the Preferences menu does not work.

Am I missing something else?

Answer 1

So I made it work by adding the following things in my org.eclipse.core.runtime.products extension,

<property
    name="cssTheme"
    value="org.eclipse.e4.ui.css.theme.e4_default">
</property>
<property
    name="applicationCSSResources"
    value="platform:/plugin/org.eclipse.platform/images/">
</property>

I don't know if this is the proper way of doing it so I am open to suggestions.