States

Requirements:
- A document should have the ability to have multiple states so that it's appearance can change simply by changing its state instead of reimplementing the entire component.
- Should be able to set the property states with the syntax: [prop-name].[state-name]=""
- See the Flex 4 states as a reference.

The issue names no files, tests, or entry points. Start by locating the document model and the code that renders or applies properties, then compare its structure with the Flex 4 states reference. Done means documents support multiple named states and the requested property.state syntax changes their appearance.

Written by the indexing model from the issue text.