Change default sheet names.

Firmware/Marlin.h

@@ -308,10 +308,10 @@ extern bool axis_known_position[3];
 extern int fanSpeed;
 extern int8_t lcd_change_fil_state;
 
-const char smooth1[] PROGMEM = "Smooth1";
-const char smooth2[] PROGMEM = "Smooth2";
-const char textured[] PROGMEM = "Textur1";
-const char *const defaultSheetNames[] PROGMEM = {smooth1,smooth2,textured};
+const char sheet1[] PROGMEM = "1";
+const char sheet2[] PROGMEM = "2";
+const char sheet3[] PROGMEM = "3";
+const char *const defaultSheetNames[] PROGMEM = {sheet1,sheet2,sheet3};
 
 #ifdef TMC2130
 void homeaxis(int axis, uint8_t cnt = 1, uint8_t* pstep = 0);