Components are a single-saved design which can be used repeatedly throughout a project. They can be updated at any time from a single location, and any changes will sync across all instances. Components are typically used to save time when editing, and ensure consistency throughout a project.
In this guide:
Any situation where a single design is used in more than one location is an opportunity to use a Component. Rather than duplicating or copying a design—requiring changes in more than one place— save it as a Component to extend one design over multiple locations. This way, if you need to make edits in the future you can just edit the Component and all instances will update automatically.
Components are also useful in making sure designs are kept consistent. Rather than arduously double-checking exact property values to maintain consistency throughout a project, designs are ensured to referencing the correct component, and everything will stay perfectly in sync.