So I have a few plugins installed that return a message. I use Entity Owner for example which returns the below since the last update:

Owner: PlayerName [<color=lightblue>Sleeping]
<color=lightgrey>Name: pllanter.large.deployed

It used to show these as the color but now shows as above.

Will I have to go into each plugin and edit the lang file to fix this even though this was the default of these plugins?

If the plugin is renaming the player, those tags will be stripped by Oxide and Rust.

If the plugin is sending the color in the chat, the plugin would need to send via a method that isn't stripping the color tags, so a method that isn't chat.add or chat.add2 from the client.

You'd have to check with each plugin to see what they are doing exactly and request changes.

Perfect thanks for the quick reply and the info!

Cheers @Wulf