2008-12-08 15:42:05: Created issue 'Which properties determine the # of layers?' nickname nr-of-layers owned by Bert Bos on product CSS3 Backgrounds and Borders, description 'David Baron remarked that 'background-image', 'background-repeat', 'background-size', and 'background-position' contribute to the number of background layers, but 'background-clip' and 'background-origin' do not, which seems inconsistent. More intuitive would be (1) all six properties are taken into account, or (2) only 'background-image' is.
David Hyatt prefers the former.
non-public [Bert Bos]