background-clip

In section 3.7 of the CSS3 backgrounds and borders module (Aug 27  
Editor's Draft)[1] It says this:

See the section “Layering multiple background images” for how  
‘background-clip’ interacts with other comma-separated background  
properties to form each background image layer.

However, “Layering multiple background images” doesn't seem to mention  
'background-clip'. I think it should say something like the following:

	Regardless of how many background images are used, the box has only  
one background painting area, as defined by the ''background-clip'  
property. The background color, if present, is painted in this area,  
below all of the other layers.