IA/ARIA_Live_Regions">ARIA Live Regions</a>.</li>
<li><strong>Color contrast and scale</strong>: Make sure content is legible and interactive controls are usable
at all screen sizes. Consider configurable UI themes for people with color blindness, low vision
or other visual impairments.</li>
<li><strong>Progressive enhancement</strong>: Some users do not browse with JavaScript enabled or do not have
the latest browser. An accessible message about site requirements can inform users and improve
the experience