Configuration in trinidad-config.xml
Oracle ADF Faces provides three skins for use in your applications:
blafplus-rich: Defines the default styles for ADF Faces components; extends the blafplus-medium skin
blafplus-medium: Provides a modest amount of styling; extends the simple skin
Simple: Contains almost no formatting
The default look and feel of ADF Faces components is defined in the trinidad-config.xml file to use BLAF Plus, a set of user interface standards for applications, known as Oracle Browser Look and Feel: <skin-family>blafplus-rich</skin-family>
To change the skin that the application uses, edit the <skin-family> element in the trinidad-config.xml file. You can use either a static value or an expression to define the skin family to use.