App does not support user preferences

Rule

Where software is not designed to be isolated from its platform, and provides a user interface, that user interface MUST follow the values of the user preferences for platform settings for: units of measurement, color, contrast, font type, font size, and focus cursor except where they are overridden by the user.

Background

Some people need to modify the visual appearance of content on a mobile device or other platform that supports software or applications. Often this is due to low vision or reading disabilities. Software and applications must follow those preferences in their user interface.

How to Fix

Fix this issue by ensuring that user preferences that can be set in the mobile device settings (such as units of measurement, color, contrast, font type, font size, and focus cursor) are reflected in the app. Note: the preferences supported differs from platform to platform. Only platform supported preferences must be reflected in the app.