diff --git a/src/sys/graphics/objgfx30.cpp b/src/sys/graphics/objgfx30.cpp
index a115d45..108bc1a 100755
--- a/src/sys/graphics/objgfx30.cpp
+++ b/src/sys/graphics/objgfx30.cpp
@@ -161,6 +161,14 @@
   return lastclr;
 } // TGfx0::RGB
 
+void TGfx0::setRGBPalette(UInt8 colour, UInt8 red, UInt8 green, UInt8 blue) {
+  colour = colour & 255;
+  pal[colour].red = red;
+  pal[colour].green = green;
+  pal[colour].blue = blue;
+  return;
+} // TGfx0::setRGBPalette
+
 void TGfx0::unpackRGB(UInt32 colour, UInt8* red, UInt8* green, UInt8* blue) {
   switch (BPP) {
   case 8: