wp theme install <theme|zip|url>

Installs one or more themes


theme|zip|urlOne or more themes to install. Accepts a theme slug, the path to a local zip file, or a URL to a remote zip file


--version <version>If set, get that particular version from wordpress.org, instead of the stable version
--forceIf set, the command will overwrite any installed version of the theme, without prompting for confirmation
--activateIf set, the theme is activated for the current site. Note that the “network” flag has no influence on this
--insecureRetry downloads without certificate validation if TLS handshake fails. Note: This makes the request vulnerable to a MITM attack