About

A layer acts like a transparent sheet upon which any graphic object can be placed.

There is no difference between layers and groups at all, since they are both just nodes of a scene graph.

Structure

Layers can be:

  • layer list (A document is just a series of layer)
  • nested (A layer contains another layer)

Properties

  • Invisible,
  • Dimmed,
  • or Locked (made read-only)

Documentation / Reference