If you are a user with the appropriate user capabilities and assigned to the root account, you can change the look-and-feel of the OpenX user interface (UI) for your instance of OpenX. For example, you may want to include your custom logo or change the display colors.
To customize the appearance of the OpenX UI:
From any screen in the OpenX UI, click the arrow next to your login email address, in the upper right corner of the screen (next to the Search field), and in the list, click Theme Settings. This displays the Theme Settings field.
If you want to change the logo that displays throughout the UI, click in the Logo URL field and type in the location of the image file to use. The custom logo location must be a URL that ends in .png, .jpg, or .jpeg. Due to security reasons, you must specify a URL with an image file extension.
If you want to change any of the display colors, click on a color swatch, and then adjust the color.
When you are finished making changes, click Save. Alternatively, to cancel any changes, click Revert.