Explanation:
Graphical user interface, text, application Description automatically generated

Box 1: AccessibleLabel
Scenario: Before deploying the app to production, you must ensure that the app conforms to Microsoft accessibility and performance guidelines.
User2 is visually impaired and cannot see images.
AccessibleLabel is a label for screen readers.
An empty value for Image, Icon, and Shape controls will hide the controls from screen reader users.
Box 2: TabIndex
User3 is unable to use a mouse.
TabIndex determines if the control participates in keyboard navigation.
Keyboard navigation is an important aspect of any app. For many, the keyboard is more efficient than using touch or a mouse. The navigation order should:
Mirror what is seen visually.
Only have a tab stop at controls that are interactive.
Follow either an intuitive across and then down "Z" order or a down and then across "reverse-N" order.