movement: preferences should show 'blu' for watches with blue LED

movement/watch_faces/settings/preferences_face.c

@@ -9,7 +9,11 @@ const char preferences_face_titles[PREFERENCES_FACE_NUM_PREFEFENCES][11] = {
     "TO        ",   // Timeout: how long before we snap back to the clock face?
     "LE        ",   // Low Energy mode: how long before it engages?
     "LT        ",   // Light: duration
+#ifdef WATCH_SWAP_LED_PINS
+    "LT   blu  ",   // Light: blue component (for watches with blue LED)
+#else
     "LT   grn  ",   // Light: green component
+#endif
     "LT   red  ",   // Light: red component
 };