Minor cleanup w/r/t LEDs

Marlin/Configuration.h

   //#define NEOPIXEL2_TYPE NEOPIXEL_TYPE
   //#define NEOPIXEL2_PIN    5
   //#define NEOPIXEL2_INSERIES     // Default behavior is NeoPixel 2 in parallel
-  #define NEOPIXEL_PIXELS 30       // Number of LEDs in the strip, larger of 2 strips if 2 neopixel strips are used
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs in the strip, larger of 2 strips if 2 NeoPixel strips are used
   #define NEOPIXEL_IS_SEQUENTIAL   // Sequential display for temperature change - LED by LED. Disable to change all LEDs at once.
   #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness (0-255)
   //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup

Marlin/src/feature/leds/leds.cpp

 
   #endif
 
-  #if ENABLED(PCA9632)
-    // Update I2C LED driver
-    pca9632_set_led_color(incol);
-  #endif
-
-  TERN_(PCA9533, PCA9533_setColor(incol.r, incol.g, incol.b));
+  // Update I2C LED driver
+  TERN_(PCA9632, PCA9632_set_led_color(incol));
+  TERN_(PCA9533, PCA9533_set_rgb(incol.r, incol.g, incol.b));
 
   #if EITHER(LED_CONTROL_MENU, PRINTER_EVENT_LEDS)
     // Don't update the color when OFF

Marlin/src/feature/leds/leds.h

   bool operator!=(const LEDColor &right) { return !operator==(right); }
 
   bool is_off() const {
-    return 3 > r + g + b
-      #if HAS_WHITE_LED
-        + w
-      #endif
-    ;
+    return 3 > r + g + b + TERN0(HAS_WHITE_LED, w);
   }
 } LEDColor;
 
     #endif
   );
 
-  inline void set_color(uint8_t r, uint8_t g, uint8_t b
+  static inline void set_color(uint8_t r, uint8_t g, uint8_t b
     #if HAS_WHITE_LED
       , uint8_t w=0
       #if ENABLED(NEOPIXEL_LED)

Marlin/src/feature/leds/neopixel.cpp

 #endif
 
 void Marlin_NeoPixel::set_color(const uint32_t color) {
-  if (get_neo_index() >= 0) {
-    set_pixel_color(get_neo_index(), color);
-    set_neo_index(-1);
+  if (neoindex >= 0) {
+    set_pixel_color(neoindex, color);
+    neoindex = -1;
   }
   else {
     for (uint16_t i = 0; i < pixels(); ++i) {
 }
 
 void Marlin_NeoPixel::init() {
-  set_neo_index(-1);                   // -1 .. NEOPIXEL_PIXELS-1 range
+  neoindex = -1;                       // -1 .. NEOPIXEL_PIXELS-1 range
   set_brightness(NEOPIXEL_BRIGHTNESS); //  0 .. 255 range
   begin();
   show();  // initialize to all off
 
   #if ENABLED(NEOPIXEL_STARTUP_TEST)
     set_color_startup(adaneo1.Color(255, 0, 0, 0));  // red
-    safe_delay(1000);
+    safe_delay(500);
     set_color_startup(adaneo1.Color(0, 255, 0, 0));  // green
-    safe_delay(1000);
+    safe_delay(500);
     set_color_startup(adaneo1.Color(0, 0, 255, 0));  // blue
-    safe_delay(1000);
   #endif
 
   #ifdef NEOPIXEL_BKGD_LED_INDEX

Marlin/src/feature/leds/neopixel.h

       , adaneo2
     #endif
   ;
-  static int8_t neoindex;
 
 public:
+  static int8_t neoindex;
+
   static void init();
   static void set_color_startup(const uint32_t c);
 
   static void set_color(const uint32_t c);
 
-  FORCE_INLINE static void set_neo_index(const int8_t neoIndex) { neoindex = neoIndex; }
-  FORCE_INLINE static int8_t get_neo_index() { return neoindex; }
-
   #ifdef NEOPIXEL_BKGD_LED_INDEX
     static void set_color_background();
   #endif

Marlin/src/feature/leds/pca9533.cpp

   PCA9533_writeRegister(PCA9533_REG_SEL, 0);
 }
 
-void PCA9533_setColor(uint8_t red, uint8_t green, uint8_t blue) {
+void PCA9533_set_rgb(uint8_t red, uint8_t green, uint8_t blue) {
   uint8_t r_pwm0 = 0; // Register data - PWM value
   uint8_t r_pwm1 = 0; // Register data - PWM value
 

Marlin/src/feature/leds/pca9533.h

 
 void PCA9533_init();
 void PCA9533_reset();
-void PCA9533_setColor(uint8_t red, uint8_t green, uint8_t blue);
+void PCA9533_set_rgb(uint8_t red, uint8_t green, uint8_t blue);
 void PCA9533_setOff();

Marlin/src/feature/leds/pca9632.cpp

   }
 #endif
 
-void pca9632_set_led_color(const LEDColor &color) {
+void PCA9632_set_led_color(const LEDColor &color) {
   Wire.begin();
   if (!PCA_init) {
     PCA_init = 1;
 
 #if ENABLED(PCA9632_BUZZER)
 
-  void pca9632_buzz(const long, const uint16_t) {
+  void PCA9632_buzz(const long, const uint16_t) {
     uint8_t data[] = PCA9632_BUZZER_DATA;
     Wire.beginTransmission(I2C_ADDRESS(PCA9632_ADDRESS));
     Wire.write(data, sizeof(data));

Marlin/src/feature/leds/pca9632.h

 struct LEDColor;
 typedef LEDColor LEDColor;
 
-void pca9632_set_led_color(const LEDColor &color);
+void PCA9632_set_led_color(const LEDColor &color);
 
 #if ENABLED(PCA9632_BUZZER)
   #include <stdint.h>
-  void pca9632_buzz(const long, const uint16_t);
+  void PCA9632_buzz(const long, const uint16_t);
 #endif

Marlin/src/feature/password/password.cpp

  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 

Marlin/src/feature/password/password.h

  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 #pragma once

Marlin/src/gcode/feature/password/M510-M512.cpp

  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
 

Marlin/src/gcode/gcode.h

  * M141 - Set heated chamber target temp. S<temp> (Requires a chamber heater)
  * M145 - Set heatup values for materials on the LCD. H<hotend> B<bed> F<fan speed> for S<material> (0=PLA, 1=ABS)
  * M149 - Set temperature units. (Requires TEMPERATURE_UNITS_SUPPORT)
- * M150 - Set Status LED Color as R<red> U<green> B<blue> P<bright>. Values 0-255. (Requires BLINKM, RGB_LED, RGBW_LED, NEOPIXEL_LED, PCA9533, or PCA9632).
+ * M150 - Set Status LED Color as R<red> U<green> B<blue> W<white> P<bright>. Values 0-255. (Requires BLINKM, RGB_LED, RGBW_LED, NEOPIXEL_LED, PCA9533, or PCA9632).
  * M155 - Auto-report temperatures with interval of S<seconds>. (Requires AUTO_REPORT_TEMPERATURES)
  * M163 - Set a single proportion for a mixing extruder. (Requires MIXING_EXTRUDER)
  * M164 - Commit the mix and save to a virtual tool (current, or as specified by 'S'). (Requires MIXING_EXTRUDER)

Marlin/src/lcd/menu/menu_led.cpp

   #include "../../feature/leds/leds.h"
 
   #if ENABLED(LED_COLOR_PRESETS)
+
     void menu_led_presets() {
       START_MENU();
       #if LCD_HEIGHT > 2
         STATIC_ITEM(MSG_LED_PRESETS, SS_DEFAULT|SS_INVERT);
       #endif
       BACK_ITEM(MSG_LED_CONTROL);
-      ACTION_ITEM(MSG_SET_LEDS_WHITE, leds.set_white);
-      ACTION_ITEM(MSG_SET_LEDS_RED, leds.set_red);
+      ACTION_ITEM(MSG_SET_LEDS_WHITE,  leds.set_white);
+      ACTION_ITEM(MSG_SET_LEDS_RED,    leds.set_red);
       ACTION_ITEM(MSG_SET_LEDS_ORANGE, leds.set_orange);
-      ACTION_ITEM(MSG_SET_LEDS_YELLOW,leds.set_yellow);
-      ACTION_ITEM(MSG_SET_LEDS_GREEN, leds.set_green);
-      ACTION_ITEM(MSG_SET_LEDS_BLUE, leds.set_blue);
+      ACTION_ITEM(MSG_SET_LEDS_YELLOW, leds.set_yellow);
+      ACTION_ITEM(MSG_SET_LEDS_GREEN,  leds.set_green);
+      ACTION_ITEM(MSG_SET_LEDS_BLUE,   leds.set_blue);
       ACTION_ITEM(MSG_SET_LEDS_INDIGO, leds.set_indigo);
       ACTION_ITEM(MSG_SET_LEDS_VIOLET, leds.set_violet);
       END_MENU();
   #endif
 #endif
 
-
-
 void menu_led() {
   START_MENU();
   BACK_ITEM(MSG_MAIN);
+
   #if ENABLED(LED_CONTROL_MENU)
     bool led_on = leds.lights_on;
     EDIT_ITEM(bool, MSG_LEDS, &led_on, leds.toggle);
     #endif
     SUBMENU(MSG_CUSTOM_LEDS, menu_led_custom);
   #endif
+
   //
   // Set Case light on/off/brightness
   //

Marlin/src/lcd/ultralcd.cpp

   #endif
   void MarlinUI::buzz(const long duration, const uint16_t freq) {
     #if ENABLED(PCA9632_BUZZER)
-      pca9632_buzz(duration, freq);
+      PCA9632_buzz(duration, freq);
     #elif USE_BEEPER
       buzzer.tone(duration, freq);
     #endif

Marlin/src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h

 #define FAN1_PIN                            PA8   // FAN  (fan0 on board) e0 cool fan
 #define FAN2_PIN                            PB9   // FAN  (fan1 on board) controller cool fan
 
-// One neopixel onboard and a connector for other neopixels
+// One NeoPixel onboard and a connector for other NeoPixels
 #define NEOPIXEL_PIN                        PC7   // The NEOPIXEL LED driving pin
 
 /**