diff --git a/generic-pc/glfb.cpp b/generic-pc/glfb.cpp
index 2db24d8..57807a9 100644
--- a/generic-pc/glfb.cpp
+++ b/generic-pc/glfb.cpp
@@ -151,6 +151,12 @@ void GLFramebuffer::initKeys()
 	mKeyMap['7']  = KEY_7;
 	mKeyMap['8']  = KEY_8;
 	mKeyMap['9']  = KEY_9;
+#ifdef MARTII
+	mKeyMap['r']  = KEY_RED;
+	mKeyMap['g']  = KEY_GREEN;
+	mKeyMap['y']  = KEY_YELLOW;
+	mKeyMap['b']  = KEY_BLUE;
+#endif
 }
 
 void GLFramebuffer::run()