Global settings control typography, colours, buttons and layout widths across the whole site. Configure these first so every page and reusable section inherits the same design system.
Next, set your logo, navigation menus, header and footer, and assign a static home page. Shopify themes expose the same choices in the theme editor under Theme settings.
Each released theme includes a guide for this step. Explore the design preview now, and check the product release status before planning installation.