diff --git a/libs/core/basic.cpp b/libs/core/basic.cpp
index 0eaea567..74cbdae5 100644
--- a/libs/core/basic.cpp
+++ b/libs/core/basic.cpp
@@ -13,7 +13,7 @@ namespace basic {
     //% weight=50
     void setLedColor(int color) {
       if (!color) {
-        uBit.rgb.Off();
+        uBit.rgb.off();
         return;
       }
 
@@ -22,9 +22,7 @@ namespace basic {
       int g = (color >> 8) & 0xFF;
       int b = (color) & 0xFF;
       
-      uBit.rgb.Set_Color(r,g,b,w);
-      uBit.rgb.On();
-      uBit.rgb.Send_to_LED();
+      uBit.rgb.setColour(r,g,b,w);
     }
 
     /**
diff --git a/libs/core/dal.d.ts b/libs/core/dal.d.ts
index 0e781f7b..905f189d 100644
--- a/libs/core/dal.d.ts
+++ b/libs/core/dal.d.ts
@@ -190,12 +190,6 @@ declare const enum DAL {
     MICROBIT_SERIAL_EVT_TX_EMPTY = 2,
     MICROBIT_UART_S_EVT_TX_EMPTY = 3,
     // built/yt/yotta_modules/microbit-dal/inc//drivers/CalliopeRGB.h
-    RGB_LED_DEFAULT_GREEN = 0,
-    RGB_LED_DEFAULT_RED = 0,
-    RGB_LED_DEFAULT_BLUE = 0,
-    RGB_LED_DEFAULT_WHITE = 0,
-    RGB_KEEP_VALUE = -1,
-    RGB_LED_MAX_INTENSITY = 50,
     // built/yt/yotta_modules/microbit-dal/inc//drivers/CalliopeSoundMotor.h
     CALLIOPE_SM_DEFAULT_DUTY_M = 50,
     CALLIOPE_SM_DEFAULT_DUTY_S = 100,
diff --git a/libs/core/pxt.json b/libs/core/pxt.json
index 359cb75c..395e146f 100644
--- a/libs/core/pxt.json
+++ b/libs/core/pxt.json
@@ -43,8 +43,7 @@
             "microbit-dal": {
                 "bluetooth": {
                     "enabled": 0
-                },
-                "debug": 1
+                }
             }
         }
     }
diff --git a/libs/hello/hello.ts b/libs/hello/hello.ts
index 9788ca83..1954fb0e 100644
--- a/libs/hello/hello.ts
+++ b/libs/hello/hello.ts
@@ -1,3 +1,12 @@
+basic.setLedColor(Colors.Blue)
+basic.pause(500)
+basic.setLedColor(Colors.Red)
+basic.pause(500)
+basic.setLedColor(Colors.Green)
+basic.pause(500)
+basic.setLedColor(0);
+basic.setLedColor(Colors.Violet)
+basic.pause(100)
 led.plot(0, 0)
 basic.pause(1000);
 basic.forever(() => {