diff --git a/README.md b/README.md
index d2ddcfd..ec2f86b 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ A deliberately limited MicroPython awareness-training firmware for an ESP32 USB
 
 The authenticated web page also provides manual **Volume up** and **Volume down** controls for a clearly observable, non-destructive HID demonstration.
 
-A password-protected local web page changes the enabled event types, mouse movement distance, and timing. The device connects to one preconfigured Wi-Fi network; it does not create an access point. On the T-Dongle-S3, its onboard RGB LED briefly flashes red for a Return press, green for mouse jitter, and blue for a volume action.
+A password-protected local web page changes the enabled event types, mouse movement distance, and timing. The device connects to one preconfigured Wi-Fi network; it does not create an access point. On the T-Dongle-S3, its onboard RGB LED briefly flashes red for a Return press, blue for mouse jitter, and green for a volume action.
 
 ## Hardware and firmware requirement
 
diff --git a/main.py b/main.py
index 53e4024..42e3cb1 100644
--- a/main.py
+++ b/main.py
@@ -147,7 +147,7 @@ def main():
                 hid.press_volume_up()
             else:
                 hid.press_volume_down()
-            activity_led.pulse(0, 0, 255, now)
+            activity_led.pulse(0, 255, 0, now)
             consumer_release_at = time.ticks_add(now, KEY_HOLD_MS)
 
         if (settings["enabled"] and settings["return_enabled"] and
@@ -168,7 +168,7 @@ def main():
             if x == 0 and y == 0:
                 x = distance
             hid.move(x, y)
-            activity_led.pulse(0, 255, 0, now)
+            activity_led.pulse(0, 0, 255, now)
             next_mouse = choose_due(
                 now, settings["mouse_min_seconds"], settings["mouse_max_seconds"]
             )