Log Message:
mate-settings-daemon: update to 1.21.2:

### mate-settings-daemon 1.21.2

  * update translations
  * media-keys: Add microphone mute key support
  * msd-xrdb-manager: realize the widget
  * media-keys: Make sound changes quiet with Alt
  * msd-xrdb-manager.c: avoid deprecated 'gtk_widget_ensure_style'
  * media-keys: always round the render coordinates for media icons
  * media-keys: Tweak the OSD's volume bar position
  * osd-window: make the window smaller
  * media-keys: Make icon smaller in OSD
  * media-keys: Use constant for icon size in OSD
  * media-keys: Add test for display switch OSD icons
  * media-keys: Add support for display switch OSD
  * media-keys: Don't show a level when muted

### mate-settings-daemon 1.21.1

  * update translations
  * media-keys: Add test for rfkill OSD icons
  * media-keys: Add label for the touchpad OSD
  * media-keys: Add labels for the rfkill OSD
  * media-keys: Remove unuseful show_level argument in \ 
msd_media_keys_window_set_action_custom
  * media-keys: Remove test for screen brightness OSD icons
  * media-keys: Add support for Killswitch media keys
  * rfkill: Add RFKill support plugin on Linux systems
  * Add shortcut to start mate-control-center
  * media-keys: Add test for touchpad OSD icons
  * media-keys: Remove touchpad OSD icons and use theme's instead
  * media-keys: Simplify touchpad OSD
  * media-keys: Add support for XF86TouchpadOn/Off
  * Add support for org.mate.accessibility-keyboard.stickykeys-latch-to-lock
  * Xrandr:remove an unused function
  * daemon: fix a memory leak
  * daemon: Stop using deprecated GSettings API
  * require mate-desktop-1.21.1
  * xsettings: add setting to enable/disable primary paste from middlemouse
  * xsettings: replace deprecated gdk_error_trap_push/pop
  * xrandr-manager: replace deprecated gdk_error_trap_push/pop
  * mouse-manager: replace deprecated gdk_error_trap_push/pop
  * media-keys-manager: replace deprecated GdkDeviceManager
  * keyboard-manager: replace deprecated gdk_error_trap_push/pop
  * clipboard-manager: replace deprecated gdk_error_trap_push/pop
  * background-manager: replace deprecated GDK functions
  * a11y-keyboard-manager: replace deprecated gdk_error_trap_push/pop
  * msd-input-helper: replace deprecated gdk_error_trap_push/pop
  * plugins: avoid deprecated 'gdk_keymap_get_default'

### mate-settings-daemon 1.21.0

  * Translations update
  * xrandr-applet-popup: add an icon for configuration item
  * xrandr-applet-popup: add item to mirror displays
  * bump mate-desktop requirement
  * Make setting QT_SCALE_FACTOR optional.
  * xrandr-applet-popup: dim menuitems for disabled monitor
  * xrandr-applet-popup: enable turning monitors on an off
  * xrandr-applet-popup: show icon only if "menus-have-icons" is not \ 
turned off
  * xrandr-applet-popup: handle Greybird (etc) XFCE themes
  * Xrandr-applet-popup: Special case the GNOME themes for black text on monitor \ 
labels
  * xrander-applet-popup: remove draw callback
  * xrandr:fix indent
  * xrandr-applet-popup: allow themes to override monitor label colors
  * xrandr-applet-popup: add a border to colored monitor labels
  * xrandr-applet-popup: use colored bg again in monitor labels
  * xrandr applet popup: add monitor icons to monitor label menuitems
  * xrandr-applet: add a style class for menuitems
  * xrandr-applet: drop non-working bg from menu
  * xrandr-applet: don't hard code label colors in menu
  * Support background fallback on HiDPI
  * Prevent media-keys bindings from swallowing modifier keys
  * Scale OSD size correctly on HiDPI displays (#212)