diff --git a/src/Common/ExtendedColor.cs b/src/Common/ExtendedColor.cs
index 2c81550..91493b9 100644
--- a/src/Common/ExtendedColor.cs
+++ b/src/Common/ExtendedColor.cs
@@ -49,7 +49,7 @@ public void SetColor(Color color) {
 		}
 
 		public Color ToColor() {
-			return Color.FromArgb(R, G, B);
+			return Color.FromArgb(32, Color.FromArgb(R, G, B));
 		}
 	}
 
diff --git a/src/Neat/Calculation/Calculator.cs b/src/Neat/Calculation/Calculator.cs
index 263193a..71a75bc 100644
--- a/src/Neat/Calculation/Calculator.cs
+++ b/src/Neat/Calculation/Calculator.cs
@@ -62,8 +62,7 @@ public IList<double> Calculate(ExtendedColorWrapper[] inputs) {
 
 			// Insert the input values to the Calculator's input nodes.
 			for (int i = 0; i < InputNodes.Count; i++) {
-				Color inputColor = inputs[i].ExtendedColor.ToColor();
-				InputNodes[i].Output = inputColor.GetBrightness();
+				InputNodes[i].Output = inputs[i].ExtendedColor.Double;
 			}
 
 			// Begin calculations.
diff --git a/src/Neat/Genetic/Genome.cs b/src/Neat/Genetic/Genome.cs
index 963ff2b..c394d16 100644
--- a/src/Neat/Genetic/Genome.cs
+++ b/src/Neat/Genetic/Genome.cs
@@ -36,8 +36,20 @@ public void Mutate() {
 		}
 
 		public void MutateActivationRandom() {
-			NodeGene? node = Nodes.GetRandomElement();
-			if (node?.X > 0.1) {
+			if (!Nodes.Any()) {
+				return;
+			}
+			int retry = 0;
+			NodeGene node;
+			do {
+				retry++;
+				node = Nodes.GetRandomElement();
+			} while (node == null && retry < 5);
+			if (node == null) {
+				// Give up.
+				return;
+			}
+			if (node.X > 0.1) {
 				ActivationEnumeration a = ActivationEnumeration.GetRandom();
 				node.Activation = a.Activation;
 			}
@@ -64,9 +76,19 @@ public void MutateLink() {
 		}
 
 		public void MutateNode() {
-			ConnectionGene connection = Connections.GetRandomElement()!;
-			if (connection == null)
+			if (!Connections.Any()) {
+				return;
+			}
+			int retry = 0;
+			ConnectionGene connection;
+			do {
+				retry++;
+				connection = Connections.GetRandomElement()!;
+			} while (connection == null && retry < 5);
+			if (connection == null) {
+				// Give up.
 				return;
+			}
 
 			NodeGene from = connection.In;
 			NodeGene to = connection.Out;
@@ -96,14 +118,30 @@ public void MutateNode() {
 		}
 
 		public void MutateToggleLink() {
-			ConnectionGene connection = Connections.GetRandomElement()!;
+			if (!Connections.Any()) {
+				return;
+			}
+			ConnectionGene connection;
+			int retry = 0;
+			do {
+				retry++;
+				connection = Connections.GetRandomElement()!;
+			} while (connection == null && retry < 5);
 			if (connection != null) {
 				connection.Enabled = !connection.Enabled;
 			}
 		}
 
 		public void MutateWeightRandom() {
-			ConnectionGene connection = Connections.GetRandomElement()!;
+			if (!Connections.Any()) {
+				return;
+			}
+			ConnectionGene connection;
+			int retry = 0;
+			do {
+				retry++;
+				connection = Connections.GetRandomElement()!;
+			} while (connection == null && retry < 5);
 			if (connection != null) {
 				connection.Weight = ThreadSafeRandom.GetNormalizedRandom(0, 0.2f) * GenomeConstants.WEIGHT_RANDOM_STRENGTH;
 			}
diff --git a/src/Neat/Genetic/GenomeConstants.cs b/src/Neat/Genetic/GenomeConstants.cs
index ca72a7e..dacf0e6 100644
--- a/src/Neat/Genetic/GenomeConstants.cs
+++ b/src/Neat/Genetic/GenomeConstants.cs
@@ -10,16 +10,16 @@ internal sealed class GenomeConstants {
 		public static readonly double WEIGHT_SHIFT_STRENGTH = 0.3;
 
 		// Weight random strength
-		public static readonly double WEIGHT_RANDOM_STRENGTH = 0.03;
+		public static readonly double WEIGHT_RANDOM_STRENGTH = 0.13;
 
 		// Probability to add a connection
-		public static readonly double PROBABILITY_MUTATE_LINK = 0.03;
+		public static readonly double PROBABILITY_MUTATE_LINK = 0.12;
 
 		// Probability to add a node
-		public static readonly double PROBABILITY_MUTATE_NODE = 0.03;
+		public static readonly double PROBABILITY_MUTATE_NODE = 0.05;
 
 		// Probability to shift a weight
-		public static readonly double PROBABILITY_MUTATE_WEIGHT_SHIFT = 0.02;
+		public static readonly double PROBABILITY_MUTATE_WEIGHT_SHIFT = 0.12;
 
 		// Probability to change a weight
 		public static readonly double PROBABILITY_MUTATE_WEIGHT_RANDOM = 0.02;
diff --git a/src/Rendering/BatchRenderer.cs b/src/Rendering/BatchRenderer.cs
index 85e0016..2f3f542 100644
--- a/src/Rendering/BatchRenderer.cs
+++ b/src/Rendering/BatchRenderer.cs
@@ -97,15 +97,22 @@ public void RenderInputRegion() {
 			if (!this.owner.UseNeat || this.gui == null) {
 				return;
 			}
-			int x = IsBotting ? this.owner._inputX : (int) this.owner.InputRegionX.Value;
-			int y = IsBotting ? this.owner._inputY : (int) this.owner.InputRegionY.Value;
-			int width = IsBotting ? this.owner._inputWidth : (int) this.owner.InputRegionWidth.Value;
-			int height = IsBotting ? this.owner._inputHeight : (int) this.owner.InputRegionHeight.Value;
-			Color inputRegionColor = Color.FromArgb(32, Color.DarkGray);
-			this.gui.DrawBox(x, y, x + width, y + height, null, inputRegionColor, DisplaySurfaceID.EmuCore);
+			Color inputOutlineColor = Color.FromArgb(72, Color.Yellow);
+			Color inputRegionColor = Color.FromArgb(32, Color.Yellow);
+			int x = (int) this.owner.InputRegionX.Value;
+			int y = (int) this.owner.InputRegionY.Value;
+			int width = (int) this.owner.InputRegionWidth.Value;
+			int height = (int) this.owner.InputRegionHeight.Value;
+			this.gui.DrawBox(x, y, x + width, y + height, inputOutlineColor, inputRegionColor, DisplaySurfaceID.EmuCore);
+
 			if (this.IsBotting) {
+				Color blockOutlineColor = Color.FromArgb(48, Color.AliceBlue);
+				int radius = this.owner._inputSampleSize / 2;
 				foreach (ExtendedColorWrapper block in this.owner._neatInputRegionData) {
-					this.gui.DrawBox(block.X - block.Radius, block.Y - block.Radius, block.X + block.Radius, block.Y + block.Radius, null, block.ExtendedColor.ToColor(), DisplaySurfaceID.EmuCore);
+					Color blockColor = block.ExtendedColor.ToColor();
+					int x1 = (block.X * this.owner._inputSampleSize) + radius + this.owner._inputX;
+					int y1 = (block.Y * this.owner._inputSampleSize) + radius + this.owner._inputY;
+					this.gui.DrawBox(x1 - radius, y1 - radius, x1 + radius, y1 + radius, blockOutlineColor, blockColor, DisplaySurfaceID.EmuCore);
 				}
 			}
 		}