Hi David,
Thanks for posting the question.
Currently, the discord messages are just plain text,
But a lot of active plugin supporters are asking for the ability for embedded messages, So I added to the development road-map:
https://github.com/expresstechsoftware/pmpro-discord-add-on/issues/272
= 1.1.1 =
* Fixed the issue of shortcode [discord_connect_button] is breaking the site because the member is not logged-in.
* Added a new feature, using the shortcode [discord_connect_button] on any page, anyone can join the website discord server.
= 1.1.2 =
– In this version, we fixed a bug related to the advanced setting of a “Login with Discord”
