Short answer: no. Mawu makes zero external requests. Everything it does happens locally, in your browser and your own WordPress install.
No account, no license key
Mawu is 100% free with no upsells. There’s nothing to sign up for, no key to enter, and no license check that phones home to verify anything.
No external service, ever
The theme’s colors are applied entirely through CSS and JavaScript that ship with the plugin itself. Nothing about your admin content, your site’s data, or your own identity is ever sent anywhere, on any screen Mawu touches.
No telemetry
Mawu doesn’t collect usage statistics, doesn’t track which theme you’ve chosen beyond your own site’s database, and doesn’t report anything back to anyone. What it does is entirely contained to your own WordPress install.
If you’re evaluating Mawu for a site with strict data-handling requirements, this is worth knowing upfront: there’s genuinely nothing to audit on the network side, because nothing leaves your server.