!ENABLED => DISABLED

Marlin/src/feature/leds/neopixel.cpp

 bool neopixel_set_led_color(const uint8_t r, const uint8_t g, const uint8_t b, const uint8_t w, const uint8_t p) {
   const uint32_t color = pixels.Color(r, g, b, w);
   pixels.setBrightness(p);
-  #if !ENABLED(NEOPIXEL_IS_SEQUENTIAL)
+  #if DISABLED(NEOPIXEL_IS_SEQUENTIAL)
     set_neopixel_color(color);
     return false;
   #else

Marlin/src/pins/pins_RAMPS.h

   #error "Oops!  Use 'BOARD_RAMPS_RE_ARM' to build for Re-ARM."
 #endif
 
-#if !ENABLED(IS_RAMPS_SMART) && !ENABLED(IS_RAMPS_DUO) && !ENABLED(IS_RAMPS4DUE) && !ENABLED(TARGET_LPC1768)
+#if DISABLED(IS_RAMPS_SMART) && DISABLED(IS_RAMPS_DUO) && DISABLED(IS_RAMPS4DUE) && DISABLED(TARGET_LPC1768)
   #if !defined(__AVR_ATmega1280__) && !defined(__AVR_ATmega2560__)
     #error "Oops!  Make sure you have 'Arduino Mega' selected from the 'Tools -> Boards' menu."
   #endif

Marlin/src/pins/pins_RURAMPS4D.h

 //#define Z2_MS2_PIN         ? // shared with E3_MS2_PIN
 //#define Z2_MS3_PIN         ? // shared with E3_MS3_PIN
 
-#if !ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
+#if DISABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
   #define Z_PROBE_PIN      49
 #endif // else Z_PROBE_PIN = Z_MIN_PIN