Shadow components determine "what" a Shadow overlay form should contain.
Selecting the components to display in the form
For Add and Edit forms, by default, Quanta will include many different components (Main node data, Node permissions, File upload, Node status, etc.).
But you might want to use only some of those components. This is done using component attributes, such as:
The above example, will create a "Node add" link that - once clicked - will show a Shadow form, containing three tabs: Standard node data (title, body, etc.), Uploaded files, Node access form.