Images provide visual appeal and may convey important information. There are three main classifications: Informative images: Convey meaning and require ALT text (a text equivalent)Decorative images: Create visual appeal or mood but do not require ALT text and should be marked as decorative using appropriate methodsFunctional images: Function as part of a link or button and require ALT text describing the control's purpose Complex images and infographics are types of informative images with additional guidance and considerations.
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