mutter/data/dbus-interfaces/org.gnome.SettingsDaemon.Power.Screen.xml

<node>
  <interface name="org.gnome.SettingsDaemon.Power.Screen">
    <property name="Brightness" type="i" access="readwrite"/>
  </interface>
</node>
color-manager: Add API to set brightness It uses the org.gnome.SettingsDaemon.Power.Screen D-Bus API. Currently brightness set if the proxy is not ready are ignored; whether the brightness value should be cached and set once it appears or whether color profiles should be reapplied is yet to be decided. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2165> 2021-12-03 23:26:01 +00:00			`<node>`
			`<interface name="org.gnome.SettingsDaemon.Power.Screen">`
			`<property name="Brightness" type="i" access="readwrite"/>`
			`</interface>`
			`</node>`