To patch your gumps or user interface, players need to create a folder called GumpOverrides inside their Ultima Online Outlands directory. The full path should be: Ultima Online Outlands\GumpOverrides.
Replacement images must be in either the .bmp or .png format. Each image should be named according to the corresponding gump in hexadecimal format, such as 0x00E9.bmp or 00E9.png. This ensures that the client correctly identifies and replaces the intended gump.
When applying changes, any area that is pure black will be automatically converted to transparency. This allows for seamless customization of UI elements without unwanted black borders or backgrounds.
All gump replacements are automatically loaded into the client when it is launched, meaning no additional steps are required once the modified files are placed in the GumpOverrides folder.