The Xtraction splash screen includes the Xtraction logo graphic. The main Xtraction web application also has an Xtraction logo in the bottom right corner. Some customers prefer to change those to a different graphic of their own. This article explains how to accomplish this.
About the main screen image
Currently, there is support for 1 custom logo on the main screen, so presumably you would adjust it to match the color scheme that you've selected for Xtraction. The Xtraction logo that is there by default is 113x20. If you make the graphic taller than 20 pixels high, it will cause the bottom footer to increase in height. Create this file with the name "logo.png".
About the splash screen image
Storing the images
Placing either or both of the above files in the Xtraction\Web\Server\Flash folder will replace the default graphics with your custom graphics. "Logo-splash.png" for initial loading screen.