feat: add a indicator for light/dark mode in waybar

waybar/.config/waybar/config.jsonc

@@ -17,6 +17,7 @@
     "modules-right": [
         "idle_inhibitor",
         "custom/ddcbrightness",
+        "custom/light-dark-mode",
         "pulseaudio",
         "network",
         "bluetooth",
@@ -210,5 +211,16 @@
         "format-ok": "",
         "system": true, // Monitor failed systemwide units.
         "user": true // Ignore failed user units.
+    },
+    "custom/light-dark-mode": {
+        "exec": "/home/bca/.config/waybar/darkman",
+        "return-type": "json",
+        "format": "{icon}",
+        "tooltip": true,
+        "on-click": "darkman toggle",
+        "format-icons": {
+            "light": " ",
+            "dark": " "
+        }
     }
 }

waybar/.config/waybar/darkman

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# vim: ft=bash
+
+print_json() {
+  case "$1" in
+    prefer-dark)
+      echo '{"text": "dark", "alt": "dark", "class": "dark", "tooltip": "Dark mode"}'
+      ;;
+    prefer-light)
+      echo '{"text": "light", "alt": "light", "class": "light", "tooltip": "Light mode"}'
+      ;;
+  esac
+}
+
+print_json "$(gsettings get org.gnome.desktop.interface color-scheme | cut -nd"'" -f 2)"
+gsettings monitor org.gnome.desktop.interface color-scheme | while read -r l; do
+  print_json "$(echo "$l" | cut -d"'" -f 2)"
+done
+

waybar/.config/waybar/style.css

@@ -97,6 +97,7 @@ button:hover {
 #idle_inhibitor,
 #scratchpad,
 #power-profiles-daemon,
+#customcustom-light-dark-mode,
 #custom-ddcbrightness,
 #idle_inhibitor,
 #mpd {