Add Babystep Z graphic overlay

See PR #7593

.travis.yml

   - opt_set TEMP_SENSOR_0 1
   - opt_set TEMP_SENSOR_1 5
   - opt_set TEMP_SENSOR_BED 1
-  - opt_enable ULTIMAKERCONTROLLER SDSUPPORT
+  - opt_enable REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER SDSUPPORT
   - opt_enable FILAMENT_WIDTH_SENSOR FILAMENT_LCD_DISPLAY
   - opt_enable FIX_MOUNTED_PROBE Z_SAFE_HOMING AUTO_BED_LEVELING_BILINEAR Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE
+  - opt_enable BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET BABYSTEP_ZPROBE_GFX_OVERLAY
   - opt_enable PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE PIDTEMPBED EEPROM_SETTINGS INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT M100_FREE_MEMORY_WATCHER
   - opt_enable_adv ADVANCED_PAUSE_FEATURE LCD_INFO_MENU ARC_SUPPORT BEZIER_CURVE_SUPPORT EXPERIMENTAL_I2CBUS EXTENDED_CAPABILITIES_REPORT AUTO_REPORT_TEMPERATURES SDCARD_SORT_ALPHA
   - opt_set_adv I2C_SLAVE_ADDRESS 63

Marlin/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/default/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Cartesio/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

   #define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Felix/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Folger Tech/i3-2020/Configuration_adv.h

   #define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/RigidBot/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/SCARA/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/delta/generic/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/delta/kossel_pro/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h

   #define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/makibox/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/config/examples/wt150/Configuration_adv.h

   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING // Double-click on the Status Screen for Z Babystepping.
   #define DOUBLECLICK_MAX_INTERVAL 1250 // Maximum interval between clicks, in milliseconds.
                                         // Note: Extra time may be added to mitigate controller latency.
+  //#define BABYSTEP_ZPROBE_GFX_OVERLAY // Enable graphical overlay on Z-offset editor
+  //#define BABYSTEP_ZPROBE_GFX_REVERSE // Reverses the direction of the CW/CCW indicators
 #endif
 
 // @section extruder

Marlin/src/inc/SanityCheck.h

     #error "MESH_BED_LEVELING and BABYSTEP_ZPROBE_OFFSET is not a valid combination"
   #elif ENABLED(BABYSTEP_ZPROBE_OFFSET) && !HAS_BED_PROBE
     #error "BABYSTEP_ZPROBE_OFFSET requires a probe."
+  #elif ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY) && !ENABLED(DOGLCD)
+    #error "BABYSTEP_ZPROBE_GFX_OVERLAY requires a DOGLCD."
+  #elif ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY) && !ENABLED(BABYSTEP_ZPROBE_OFFSET)
+    #error "BABYSTEP_ZPROBE_GFX_OVERLAY requires a BABYSTEP_ZPROBE_OFFSET."
   #endif
 #endif
 

Marlin/src/lcd/dogm/dogm_bitmaps.h

       0x0C, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
     };
   #endif // Extruders
+
+  #if ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY)
+    const unsigned char cw_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x07,0xf8,0x00, // 000001111111100000000000
+      0x0c,0x0c,0x00, // 000011000000110000000000
+      0x10,0x02,0x00, // 000100000000001000000000
+      0x20,0x01,0x00, // 001000000000000100000000
+      0x60,0x01,0x80, // 011000000000000100000000
+      0x40,0x00,0x80, // 010000000000000010000000
+      0x40,0x03,0xe0, // 010000000000001111100000
+      0x40,0x01,0xc0, // 010000000000000111000000
+      0x40,0x00,0x80, // 010000000000000010000000
+      0x40,0x00,0x00, // 010000000000000000000000
+      0x40,0x00,0x00, // 010000000000000000000000
+      0x60,0x00,0x00, // 011000000000000000000000
+      0x20,0x00,0x00, // 001000000000000000000000
+      0x10,0x00,0x00, // 000100000000000000000000
+      0x0c,0x0c,0x00, // 000011000000110000000000
+      0x07,0xf8,0x00  // 000001111111100000000000
+    };
+
+    const unsigned char ccw_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x01,0xfe,0x00, // 000000011111111000000000
+      0x03,0x03,0x00, // 000000110000001100000000
+      0x04,0x00,0x80, // 000001000000000010000000
+      0x08,0x00,0x40, // 000010000000000001000000
+      0x18,0x00,0x60, // 000110000000000001100000
+      0x10,0x00,0x20, // 000100000000000000100000
+      0x7c,0x00,0x20, // 011111000000000000100000
+      0x38,0x00,0x20, // 001110000000000000100000
+      0x10,0x00,0x20, // 000100000000000000100000
+      0x00,0x00,0x20, // 000000000000000000100000
+      0x00,0x00,0x20, // 000000000000000000100000
+      0x00,0x00,0x60, // 000000000000000001100000
+      0x00,0x00,0x40, // 000000000000000001000000
+      0x00,0x00,0x80, // 000000000000000010000000
+      0x03,0x03,0x00, // 000000110000001100000000
+      0x01,0xfe,0x00  // 000000011111111000000000
+    };
+
+
+    const unsigned char up_arrow_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x06,0x00, // 000001100000
+      0x0F,0x00, // 000011110000
+      0x1F,0x80, // 000111111000
+      0x3F,0xC0, // 001111111100
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00  // 000001100000
+    };
+
+    const unsigned char down_arrow_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x06,0x00, // 000001100000
+      0x3F,0xC0, // 001111111100
+      0x1F,0x80, // 000111111000
+      0x0F,0x00, // 000011110000
+      0x06,0x00  // 000001100000
+    };
+
+    const unsigned char offset_bedline_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0xFF,0xFF,0xFF // 111111111111111111111111
+    };
+
+    const unsigned char nozzle_bmp[] PROGMEM = { //AVR-GCC, WinAVR
+      0x7F,0x80, // 0111111110000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0x7F,0x80, // 0111111110000000
+      0x7F,0x80, // 0111111110000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0xFF,0xC0, // 1111111111000000
+      0x3F,0x00, // 0011111100000000
+      0x1E,0x00, // 0001111000000000
+      0x0C,0x00  // 0000110000000000
+    };
+  #endif // BABYSTEP_ZPROBE_GFX_OVERLAY
+
 #endif // HAS_TEMP_BED

Marlin/src/lcd/ultralcd.cpp

 
     #if ENABLED(BABYSTEP_ZPROBE_OFFSET)
 
+      #if ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY)
+
+        void _lcd_babystep_zoffset_overlay(const float in_zoffset) {
+          // Determine whether the user is raising or lowering the nozzle.
+          int8_t dir = 0;
+          static float old_zprobe_zoffset = 0;
+          if (in_zoffset != old_zprobe_zoffset) {
+            dir = (in_zoffset > old_zprobe_zoffset) ? 1 : -1;
+            old_zprobe_zoffset = in_zoffset;
+          }
+
+          #if ENABLED(BABYSTEP_ZPROBE_GFX_REVERSE)
+            const unsigned char *rot_up   = ccw_bmp;
+            const unsigned char *rot_down = cw_bmp;
+          #else
+            const unsigned char *rot_up   = cw_bmp;
+            const unsigned char *rot_down = ccw_bmp;
+          #endif
+
+          #if ENABLED(USE_BIG_EDIT_FONT)
+            const int left = 0, right = 45, nozzle = 95;
+          #else
+            const int left = 5, right = 90, nozzle = 60;
+          #endif
+
+          // Draw a representation of the nozzle
+          if (PAGE_CONTAINS(3, 16))  u8g.drawBitmapP(nozzle + 6, 4 - dir, 2, 12, nozzle_bmp);
+          if (PAGE_CONTAINS(20, 20)) u8g.drawBitmapP(nozzle + 0, 20, 3, 1, offset_bedline_bmp);
+
+          // Draw cw/ccw indicator and up/down arrows.
+          if (PAGE_CONTAINS(47,62)) {
+            u8g.drawBitmapP(left  + 0, 47, 3, 16, rot_down);
+            u8g.drawBitmapP(right + 0, 47, 3, 16, rot_up);
+            u8g.drawBitmapP(right + 20, 48 - dir, 2, 13, up_arrow_bmp);
+            u8g.drawBitmapP(left  + 20, 49 - dir, 2, 13, down_arrow_bmp);
+          }
+        }
+
+      #endif // BABYSTEP_ZPROBE_GFX_OVERLAY
+
       void lcd_babystep_zoffset() {
         if (lcd_clicked) { return lcd_goto_previous_menu_no_defer(); }
         defer_return_to_status = true;
             lcdDrawUpdate = LCDVIEW_CALL_REDRAW_NEXT;
           }
         }
-        if (lcdDrawUpdate)
+        if (lcdDrawUpdate) {
           lcd_implementation_drawedit(PSTR(MSG_ZPROBE_ZOFFSET), ftostr43sign(zprobe_zoffset));
+          #if ENABLED(BABYSTEP_ZPROBE_GFX_OVERLAY)
+            _lcd_babystep_zoffset_overlay(zprobe_zoffset);
+          #endif
+        }
       }
 
     #else // !BABYSTEP_ZPROBE_OFFSET