add black screensaver to waybar menu

home/user/.config/waybar/config

@@ -112,6 +112,7 @@
             "shutdown": "shutdown -h now",
             "suspend": "~/.config/sway/scripts/lock-telegram.sh && systemctl suspend",
             "lock": "~/.config/sway/scripts/lock-telegram.sh && swaylock -f",
+            "black": "magick canvas:none PNG:- | feh --class black -YFx -",
             "uefi_reboot": "systemctl reboot --firmware-setup",
         },
     },

home/user/.config/waybar/power_menu.xml

@@ -26,6 +26,11 @@
                 <property name="label">🔒 Lock</property>
             </object>
         </child>
+        <child>
+            <object class="GtkMenuItem" id="black">
+                <property name="label">Black</property>
+            </object>
+        </child>
         <child>
             <object class="GtkSeparatorMenuItem" id="delimiter1"/>
         </child>