The astute will notice that there are two green wagons in WU. One is the Freedom wagon, which is supposed to be green, and the other is the Crusaders wagon, which is supposed to be white, but isn't.

The Crusaders textures were disabled in WU years ago due to a copyright. They still exist, you just need to re-enable them. Here's how.

Close any running copies of Wurm Unlimited.

If your archive manager supports JAR files skip this step. Otherwise, download and install 7zip.

The # character is used at the beginning of a line in the config text files as a way to comment it out/disable it from being read in as a setting. When you remove the leading # from a line, it enables it and WU will read it as part of its settings. What we're about to do is re-enable lines that were commented out to disable the Crusader textures.

Navigate to your WurmLauncher\packs folder.

1. Right click on pmk.jar and Open with archive manager or 7zip File Manager.

1. Right click on mappings.txt and Edit.
2. Find the Crusaders lines that start with # and remove the #. Shown with #'s removed below.
3. File, Save (CTRL-S), close the text editor (notepad, unless you use something else as default).
4. When the popup asks, Update the file.

1. Right click on graphics.jar and Open with archive manager or 7zip File Manager.

1. Find and open mappings.txt and search for the string “.thec” (without the quotes).
2. Remove the leading # character from the line it finds (there is only one search result). Shown with # removed below.
   
3. File, Save (CTRL-S), close the text editor (notepad, unless you use something else as default).
4. When the popup asks, Update the file.

You should now be able to see the Crusaders textures for wagon, tabard and banner.

NOTE: If you get “file in use” errors when updating the files, it is because a copy of Wurm Unlimited is stuck running in the background. Use Task Manager to close all copies of Wurm Client, or reboot to fix the issue.

I was able to do it in Linux Mint. Use your built-in archive manager in place of 7zip. The procedure is pretty much the same.