Why should role="img" be assigned to informative and actionable icon fonts?

Assigning role="img" to informative and actionable icon fonts is essential because it enables screen readers to identify these icon fonts as images. This designation is crucial for ensuring that users who rely on assistive technologies, such as screen readers, can perceive the information conveyed by the icons. When role="img" is applied, the screen reader announces the icon as an image, which is key for conveying the symbol's intended meaning, especially if the icon is pictorially informative or serves as a call to action.

When properly implemented, this accessibility feature allows users to understand the function or message represented by the icon, thereby enhancing usability and ensuring a more inclusive experience for individuals with visual impairments. This practice is vital in web development, where icons often serve significant roles in navigation, functionality, and user interaction.