When the field of the shield is filled with alternately coloured horizontal lines, this is known as barry, obviously because it is like having many separate bars across the field A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Barry. As well as being drawn with straight edges, there some decorative effects that can be used, and, with careful, these can be very pleasing. The decorations are typically much smaller than those used on the major ordinaries, such as the fess so care must be taken to ensure clarity. Nebulee (sometimes nebuly is a very pleasing pattern of interlocking curves, the name refers to “clouds” as it is reminscent of their soft abstract edges.