Is it possible to highlight a returning user's first message of the stream?

[MC31415926535897]

I was wondering if it was possible to highlight a user's first message of a stream. Not their first message in the channel in all time, but their first message since the channel has most recently gone live. A little like how a Twitch Chat Pet welcomes users on stream when a user types in their first message since the last time the browser source was loaded, but just highlighting the chat message in chatterino. If so, how may I do this?

[Felanbird]

Not currently, I know that Twitch was experimenting with this feature, but I have no idea in what way they implemented it, and the person who would likely know/have an example, is on vacation. So I cant give you a definitive yes/no on whether or not it's possible for us to add it.

[iProdigy]

returning-chatter=1 is the twitch experiment

[Felanbird]

Then while it is not currently possible, it could be in the future.