Which feature is part of the new topics proposed for WCAG 2.2 regarding navigability?

The correct answer highlights the "Focus Appearance" feature that is part of the proposed updates in WCAG 2.2, particularly concerning navigability. This feature aims to ensure that focused elements on a webpage are clearly visible during keyboard navigation. Enhanced focus appearance is essential for users who rely on keyboards, including those with motor impairments or visual disabilities. By establishing clear visual indicators for focused elements, it improves overall user experience, allowing better tracking of navigation through keyboard commands.

Each proposed feature in WCAG 2.2 addresses specific accessibility challenges faced by users. While keyboard shortcuts, color contrast, and text resizing are significant accessibility considerations, they do not specifically address the navigability issue regarding visible focus indicators, which is why "Focus Appearance" is the relevant choice for this context.