The document discusses user interface states and provides examples of how states can be systematically defined across different UI components. It defines what states are and provides examples like visited, focus, hover, active, disabled, invalid, checked/selected states. It emphasizes the importance of defining states for all interactive elements, including custom elements, to ensure usability. It also stresses the importance of maintaining consistent state styling across a design system through the use of a state table that defines how each state should appear for different common UI elements like links, buttons, forms, tabs etc. This helps establish visual consistency and maintainability.
87. Issue:
Unable to distinguish between
focus and checked state on a
segmented control. Assumed the
form control had been selected
when it was only in focus.