Functional images are used as operable controls like buttons or links and need an .accessibilityLabel that describes their function to VoiceOver users.
The .accessibilityLabel of a functional image should not describe what an image looks like, intead, it should describe its function.
Notes:
- Functional images should not include the word "Image" or "Icon" in the
.accessibilityLabelas that does not describe the function of the control.
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