Important Note: I have completely changed the concept of the css-settings for NivoSlider. This new concept is not compatible with previous versions, but much more flexible and allows multiple NivoSlider slideshows on the same page with completely different settings! Therefore you must open your settings and save them again for each existing NivoSlider slideshow! NivoSlider comes with six themes: the four default themes and two modified themes based on the default theme. These themes are stored in the folder modules/Showtime2/templates/nivoslider/themes. Do not modify these themes! They are only initial themes on installation and will be copied to the folder uploads/_Showtime2/nivothemes. These themes are used by Showtime2. You may modify them or add new, customized themes, which will then appear in the theme dropdown list. Each theme can be modified later for a specific show on the settings-page.