The Rich Content Editor component will be visible to all Platinum customers from California. This is because UMS has assigned the component solely to Platinum customers using Audience Targeting, which is a feature that allows UMS to display different content to different audiences based on criteria such as profile, location, domain, or user. UMS has also assigned the page variation for the Home page to customers from California using Page Variations, which is a feature that allows UMS to create different versions of a page and assign them to different audiences based on criteria such as record type, field value, or ownership.