To customise your Discord Rich Presence, you will need to create an application on the Discord Developer Portal. Once you have created the application, head over to the TruckersHub integrations -> discord.

Then, enter the application id of the application you created into the ETS2 Application ID and ATS Application ID (it is possible to have a different application id for each game).

Setup Logo

Now that you have configured your Discord Rich Presence, you can change the logo by uploading a Rich Presence Assets under the Discord Developer Portal. The name of this asset must be logo and can be one of the supported file formats.