diff --git a/scripts/updates.sh b/scripts/updates.sh
index 1cc8e8a..f6a1533 100755
--- a/scripts/updates.sh
+++ b/scripts/updates.sh
@@ -9,6 +9,18 @@
 # by Stephan Raabe (2023) 
 # ----------------------------------------------------- 
 
+# ----------------------------------------------------- 
+# Define threshholds for color indicators
+# ----------------------------------------------------- 
+
+threshhold_green=0
+threshhold_yellow=25
+threshhold_red=100
+
+# ----------------------------------------------------- 
+# Calculate available updates pacman and aur (with trizen)
+# ----------------------------------------------------- 
+
 if ! updates_arch=$(checkupdates 2> /dev/null | wc -l ); then
     updates_arch=0
 fi
@@ -19,8 +31,23 @@ fi
 
 updates=$(("$updates_arch" + "$updates_aur"))
 
-if [ "$updates" -gt 0 ]; then
-    echo " $updates"
-else
-    echo " 0"
+# ----------------------------------------------------- 
+# Output in JSON format for Waybar Module custom-updates
+# ----------------------------------------------------- 
+
+css_class="green"
+
+# test classes
+# printf '{"text": "0", "alt": "0", "tooltip": "0 Updates", "class": "red"}'
+# exit
+
+if [ "$updates" -gt $threshhold_yellow ]; then
+    css_class="yellow"
+elif [ "$updates" -gt $threshhold_red ]; then
+    css_class="red"
+fi
+if [ "$updates" -gt $threshhold_green ]; then
+    printf '{"text": "%s", "alt": "%s", "tooltip": "%s Updates", "class": "%s"}' "$updates" "$updates" "$updates" "$css_class"
+else
+    printf '{"text": "0", "alt": "0", "tooltip": "0 Updates", "class": "green"}'
 fi