The <ace:message> component renders the first Faces message for a specific component. Messages can be shown with effects initially and/or when they change. Styling is done by predefined jQuery classes in theme stylesheets:
- Info: ui-icon-info w/ ui-state-highlight css
- Warn: ui-icon-notice w/ ui-state-highlight css
- Error: ui-icon-alert w/ ui-state-error css
- Fatal: ui-icon-alert w/ ui-state-error css