Luminis Platform 5 comes with a flexible and customizable templating engine. This engine is used for a range of basic color and logo changes to advanced theming. One can customize different themes for a global institution, different users, communities, departments and so on. The theme uses CSS, images, JavaScript, JQuery, and Velocity templates to control the whole look and feel of the pages generated by the portal. This presentation will break down the different aspects of the theming process from simple color and logo changes to more advanced theme creation and deployment. We will also include a preview of some upcoming changes in a future Luminis Platform 5.1 release.