Use the following checklist to ensure that your plug-in is consistent with the rest of the interface and any other plug-ins built by developers following this guide. Action bar buttons have a corresponding menu item on the Actions menu. Interface text adheres to capitalization guidelines. ...

Both headline-style capitalization and sentence-style are used, depending on the item. For the most part, these guidelines also agree with the IBM Web Interface Style Guidelines, so that if you are designing for both the Web and rich client, consider using the same properties file. Headline-style ...