In print materials, the display of information is fixed and permanent. Digital materials allow the display of the same information to be flexible and customizable. For example, a call-out box of background information may be displayed in a different location, enlarged, emphasized by the use of color, or deleted entirely. Such flexibility provides options for increasing the perceptual clarity and salience of information for a diversity of learners and allowing for preference adjustments for others. While these customizations can be more difficult with print materials, these are features that can be available through digital materials. It is important to note that digital does not mean the content is accessible, as many digital materials are equally inaccessible because the accessibility features were not included during content development. Educators and learners should work together to attain the best match of features to learning needs.

Offer information in accessible formats so the following perceptual features can be customized:

• Font, size of text, character and line spacing, character width, background color, and text colors
• Size of images, graphs, tables, and other visual content
• Contrast between background and images
• Color used for information or emphasis
• Volume or rate of speech or sound
• Speed or timing of video, animation, sound, simulations, etc.
• Layout of visual or other elements