2.1.275 Section 9.1.3, Layer

a.   The standard defines the element <draw:layer>

This element is supported in core PowerPoint 2007.

This element is used to identify backgrounds inherited by layouts from masters. If a shape on a master-page is identified as a layout and the shape is on a layer that has a name in the form "<master-page-bg>", then these shapes are inherited from the slide master, and will not appear on the slide. Layers are also used to signify hidden/protected shapes. Beyond these uses, PowerPoint 2007 does not support a general concept of layers.

b.   The standard defines the attribute draw:display, contained within the element <draw:layer>

This attribute is supported in core PowerPoint 2007.

c.   The standard defines the attribute draw:name, contained within the element <draw:layer>

This attribute is supported in core PowerPoint 2007.

d.   The standard defines the attribute draw:protected, contained within the element <draw:layer>

This attribute is supported in core PowerPoint 2007.

e.   The standard defines the attribute svg:desc, contained within the element <draw:layer>

This attribute is not supported in core PowerPoint 2007.

f.   The standard defines the attribute svg:title, contained within the element <draw:layer>

This attribute is not supported in core PowerPoint 2007.