Components: Components are user interface elements that can be reused throughout the design file. They make design more consistent and allow for more rapid modifications. Components can be made from a layer , groups or frames.

• Generally, there are two sorts of components:

1. Main Component: It is normally built first and is responsible for specifying several UI styles in the UI element.
2. Instance Component: This is the single occurrence main component. When the main component is modified. It is automatically applied to the instance component. However, modifications to Instance components must be made manually.

The changes we make to the instance component are referred to as override. When we override an instance component and afterwards make modifications to the main component, the override does not change.