TxExpo help - UI Settings
 
  TransactionExpo allows you to define different entities that can be used throughout the application. Currently only images can be set.

Defining an Image
  1. From the 'Administration' menu, select 'UI Settings' to enter the 'UI Customization' page. Images defined in your system are displayed here.
  2. Click on the 'Add new' link to create a new system image or click on the 'edit' link of an existing one to edit it.
  3. Enter the name of the image.
  4. Enter the image path, or alternatively, use the 'Browse' button to select the image file from you file system.
  5. Click 'save' to save the image definition.