Small changes to checkerboard shader

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Resources/Shaders/Checkerboard.shader

             static const float rows = 32;
             static const float columns = 32;
 
-            static const float4 col1 = float4(0.15, 0.15, 0.15, 1.0);
-            static const float4 col2 = float4(0.3, 0.3, 0.3, 1.0);
+            static const float4 col1 = float4(0.389297, 0.389297, 0.389297, 1.0);
+            static const float4 col2 = float4(0.442601, 0.442601, 0.442601, 1.0);
-                bool isEven = total % 2.0 == 0.0;
-                return isEven ? col1 : col2;
+                return lerp(col1, col2, step(fmod(total, 2.0), 0.5));
             }
             ENDCG
         }