Generator is installed directly from the HubSpot Marketplace. To get started, visit the Marketplace listing for Generator and open it in your browser. HubSpot will ask you to select the portal you want to install it into.
Most people only have one HubSpot portal, so this step is straightforward — just confirm the portal shown is the one you want to use. If you manage multiple portals, like a sandbox or client accounts, make sure you select the right one before continuing. This is the portal where you'll be building your website, landing pages, and blog.
Once you've confirmed your portal, click Continue with this account. This takes you to Generator's marketplace listing page. Click Purchase theme on the right side of the page and you're done — Generator is now installed in your HubSpot portal.