It's definitely not just the Stealth debut, as they specifically mention that in the article. Four bullets after the below is where they mention the new variant.
"Motorlux (Wednesday, August 17) – Lucid will have a stand at this updated event at the Monterey Jet Center for the public debut of its recently announced Stealth Look for Lucid Air. Attendees will have the opportunity to see this darker and more assertive exterior design theme for the very first time during this exclusive event."
"Motorlux (Wednesday, August 17) – Lucid will have a stand at this updated event at the Monterey Jet Center for the public debut of its recently announced Stealth Look for Lucid Air. Attendees will have the opportunity to see this darker and more assertive exterior design theme for the very first time during this exclusive event."