Intent Writing 2.7.1, 2.7.2, and 2.7.3

2.7.1 Change Preference Settings

The user can change settings that impact accessibility. (Level A)

Intent:

Users have a variety of needs when it comes to customization of a user
agent.
This success criteria ensures that a user can customize settings offered by
the
user agent to meet those needs.

2.7.2 Persistence of Settings Affecting Accessibility

User agent accessibility preference settings persist between sessions.
(Level A)

Intent:

When a user has customized settings within the user agent to maximize
accessibility, this success criteria ensures that customization is saved
between
browsing sessions.  The user can then have those settings automatically
used in
subsequent browsing sessions.

2.7.3 Restore all to default: The user can restore all preference settings
to default values. (Level A)

Intent:

Users who customize settings may find that their chosen settings are not
suitable and decide to restore these settings to their default values.  For
some
users, it may be difficult to easily recall all modified settings while
others
may find it difficult to navigate to each modified setting, especially if a
particular setting may have impacted their ability to do so. This success
criteria provides a means for a user to easily restore all preference
settings
to their default values using a single function or action.