/usr/share/glib-2.0/schemas/org.mate.applications-at-visual.gschema.xml is in mate-desktop-common 1.20.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | <schemalist gettext-domain="mate-desktop">
<schema id="org.mate.applications-at-visual" path="/org/mate/desktop/applications/at/visual/">
<key name="exec" type="s">
<default>'orca'</default>
<summary>Preferred Visual assistive technology application</summary>
<description>Preferred Visual assistive technology application to be used for login, menu, or command line.</description>
</key>
<key name="startup" type="b">
<default>false</default>
<summary>Start preferred Visual assistive technology application</summary>
<description>MATE to start preferred Visual assistive technology application during login.</description>
</key>
</schema>
</schemalist>
|