Config: enable G26 mesh validation

Marlin/Configuration.h

@@ -1601,14 +1601,14 @@
   /**
    * Enable the G26 Mesh Validation Pattern tool.
    */
-  //#define G26_MESH_VALIDATION
+  #define G26_MESH_VALIDATION
   #if ENABLED(G26_MESH_VALIDATION)
     #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
     #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for G26.
-    #define MESH_TEST_HOTEND_TEMP  205    // (°C) Default nozzle temperature for G26.
+    #define MESH_TEST_HOTEND_TEMP  200    // (°C) Default nozzle temperature for G26.
     #define MESH_TEST_BED_TEMP      60    // (°C) Default bed temperature for G26.
-    #define G26_XY_FEEDRATE         20    // (mm/s) Feedrate for G26 XY moves.
-    #define G26_XY_FEEDRATE_TRAVEL 100    // (mm/s) Feedrate for G26 XY travel moves.
+    #define G26_XY_FEEDRATE         50    // (mm/s) Feedrate for G26 XY moves.
+    #define G26_XY_FEEDRATE_TRAVEL 200    // (mm/s) Feedrate for G26 XY travel moves.
     #define G26_RETRACT_MULTIPLIER   1.0  // G26 Q (retraction) used by default between mesh test elements.
   #endif