Backwards and Forwards Compatibility

The following areas are of interest when considering support for both past design and future innovation.

• From WordArt: This is specific to dealing with previous WordArt text. Now that text is described as simply a shape, there is no need for a WordArt-specific description. There is, however, the need to identify which pieces of text were from the old WordArt styles in case there is the need to write them back out in their old format.

• Future Extensions: The ability for future extensions has been provided to the body property tag via the <ext> tag. This can be used the widest way possible as it is a complex type and can thus describe the most complex future properties. Note that each of the schema subclauses below have their own <ext> tag.