diff --git a/c/qrcodegen.c b/c/qrcodegen.c
index 3818499..17f8aaa 100644
--- a/c/qrcodegen.c
+++ b/c/qrcodegen.c
@@ -635,10 +635,10 @@ static long getPenaltyScore(const uint8_t qrcode[]) {
 	// Adjacent modules in row having same color, and finder-like patterns
 	for (int y = 0; y < qrsize; y++) {
 		unsigned char runHistory[7] = {0};
-		bool color = false;
+		bool runColor = false;
 		unsigned char runX = 0;
 		for (int x = 0; x < qrsize; x++) {
-			if (getModule(qrcode, x, y) == color) {
+			if (getModule(qrcode, x, y) == runColor) {
 				runX++;
 				if (runX == 5)
 					result += PENALTY_N1;
@@ -646,14 +646,14 @@ static long getPenaltyScore(const uint8_t qrcode[]) {
 					result++;
 			} else {
 				addRunToHistory(runX, runHistory);
-				if (!color && hasFinderLikePattern(runHistory))
+				if (!runColor && hasFinderLikePattern(runHistory))
 					result += PENALTY_N3;
-				color = getModule(qrcode, x, y);
+				runColor = getModule(qrcode, x, y);
 				runX = 1;
 			}
 		}
 		addRunToHistory(runX, runHistory);
-		if (color)
+		if (runColor)
 			addRunToHistory(0, runHistory);  // Dummy run of white
 		if (hasFinderLikePattern(runHistory))
 			result += PENALTY_N3;
@@ -661,10 +661,10 @@ static long getPenaltyScore(const uint8_t qrcode[]) {
 	// Adjacent modules in column having same color, and finder-like patterns
 	for (int x = 0; x < qrsize; x++) {
 		unsigned char runHistory[7] = {0};
-		bool color = false;
+		bool runColor = false;
 		unsigned char runY = 0;
 		for (int y = 0; y < qrsize; y++) {
-			if (getModule(qrcode, x, y) == color) {
+			if (getModule(qrcode, x, y) == runColor) {
 				runY++;
 				if (runY == 5)
 					result += PENALTY_N1;
@@ -672,14 +672,14 @@ static long getPenaltyScore(const uint8_t qrcode[]) {
 					result++;
 			} else {
 				addRunToHistory(runY, runHistory);
-				if (!color && hasFinderLikePattern(runHistory))
+				if (!runColor && hasFinderLikePattern(runHistory))
 					result += PENALTY_N3;
-				color = getModule(qrcode, x, y);
+				runColor = getModule(qrcode, x, y);
 				runY = 1;
 			}
 		}
 		addRunToHistory(runY, runHistory);
-		if (color)
+		if (runColor)
 			addRunToHistory(0, runHistory);  // Dummy run of white
 		if (hasFinderLikePattern(runHistory))
 			result += PENALTY_N3;
diff --git a/cpp/QrCode.cpp b/cpp/QrCode.cpp
index 2679805..dba2cc5 100644
--- a/cpp/QrCode.cpp
+++ b/cpp/QrCode.cpp
@@ -428,10 +428,10 @@ long QrCode::getPenaltyScore() const {
 	// Adjacent modules in row having same color, and finder-like patterns
 	for (int y = 0; y < size; y++) {
 		std::deque<int> runHistory(7, 0);
-		bool color = false;
+		bool runColor = false;
 		int runX = 0;
 		for (int x = 0; x < size; x++) {
-			if (module(x, y) == color) {
+			if (module(x, y) == runColor) {
 				runX++;
 				if (runX == 5)
 					result += PENALTY_N1;
@@ -439,14 +439,14 @@ long QrCode::getPenaltyScore() const {
 					result++;
 			} else {
 				addRunToHistory(runX, runHistory);
-				if (!color && hasFinderLikePattern(runHistory))
+				if (!runColor && hasFinderLikePattern(runHistory))
 					result += PENALTY_N3;
-				color = module(x, y);
+				runColor = module(x, y);
 				runX = 1;
 			}
 		}
 		addRunToHistory(runX, runHistory);
-		if (color)
+		if (runColor)
 			addRunToHistory(0, runHistory);  // Dummy run of white
 		if (hasFinderLikePattern(runHistory))
 			result += PENALTY_N3;
@@ -454,10 +454,10 @@ long QrCode::getPenaltyScore() const {
 	// Adjacent modules in column having same color, and finder-like patterns
 	for (int x = 0; x < size; x++) {
 		std::deque<int> runHistory(7, 0);
-		bool color = false;
+		bool runColor = false;
 		int runY = 0;
 		for (int y = 0; y < size; y++) {
-			if (module(x, y) == color) {
+			if (module(x, y) == runColor) {
 				runY++;
 				if (runY == 5)
 					result += PENALTY_N1;
@@ -465,14 +465,14 @@ long QrCode::getPenaltyScore() const {
 					result++;
 			} else {
 				addRunToHistory(runY, runHistory);
-				if (!color && hasFinderLikePattern(runHistory))
+				if (!runColor && hasFinderLikePattern(runHistory))
 					result += PENALTY_N3;
-				color = module(x, y);
+				runColor = module(x, y);
 				runY = 1;
 			}
 		}
 		addRunToHistory(runY, runHistory);
-		if (color)
+		if (runColor)
 			addRunToHistory(0, runHistory);  // Dummy run of white
 		if (hasFinderLikePattern(runHistory))
 			result += PENALTY_N3;
diff --git a/java/src/main/java/io/nayuki/qrcodegen/QrCode.java b/java/src/main/java/io/nayuki/qrcodegen/QrCode.java
index 8ce096f..07afd7d 100644
--- a/java/src/main/java/io/nayuki/qrcodegen/QrCode.java
+++ b/java/src/main/java/io/nayuki/qrcodegen/QrCode.java
@@ -598,41 +598,41 @@ public final class QrCode {
 		// Adjacent modules in row having same color, and finder-like patterns
 		FinderPatternDetector det = new FinderPatternDetector();
 		for (int y = 0; y < size; y++) {
-			boolean color = false;
+			boolean runClor = false;
 			int runX = 0;
 			det.reset();
 			for (int x = 0; x < size; x++) {
-				if (modules[y][x] == color) {
+				if (modules[y][x] == runClor) {
 					runX++;
 					if (runX == 5)
 						result += PENALTY_N1;
 					else if (runX > 5)
 						result++;
 				} else {
-					color = modules[y][x];
+					runClor = modules[y][x];
 					runX = 1;
 				}
-				result += det.addModuleAndMatch(color) * PENALTY_N3;
+				result += det.addModuleAndMatch(runClor) * PENALTY_N3;
 			}
 			result += det.terminateAndMatch() * PENALTY_N3;
 		}
 		// Adjacent modules in column having same color, and finder-like patterns
 		for (int x = 0; x < size; x++) {
 			det.reset();
-			boolean color = false;
+			boolean runColor = false;
 			int runY = 0;
 			for (int y = 0; y < size; y++) {
-				if (modules[y][x] == color) {
+				if (modules[y][x] == runColor) {
 					runY++;
 					if (runY == 5)
 						result += PENALTY_N1;
 					else if (runY > 5)
 						result++;
 				} else {
-					color = modules[y][x];
+					runColor = modules[y][x];
 					runY = 1;
 				}
-				result += det.addModuleAndMatch(color) * PENALTY_N3;
+				result += det.addModuleAndMatch(runColor) * PENALTY_N3;
 			}
 			result += det.terminateAndMatch() * PENALTY_N3;
 		}
diff --git a/javascript/qrcodegen.js b/javascript/qrcodegen.js
index d03ea89..cf77be8 100644
--- a/javascript/qrcodegen.js
+++ b/javascript/qrcodegen.js
@@ -430,10 +430,10 @@ var qrcodegen = new function() {
 			// Adjacent modules in row having same color, and finder-like patterns
 			for (var y = 0; y < size; y++) {
 				var runHistory = [0,0,0,0,0,0,0];
-				var color = false;
+				var runColor = false;
 				var runX = 0;
 				for (var x = 0; x < size; x++) {
-					if (modules[y][x] == color) {
+					if (modules[y][x] == runColor) {
 						runX++;
 						if (runX == 5)
 							result += QrCode.PENALTY_N1;
@@ -441,14 +441,14 @@ var qrcodegen = new function() {
 							result++;
 					} else {
 						QrCode.addRunToHistory(runX, runHistory);
-						if (!color && QrCode.hasFinderLikePattern(runHistory))
+						if (!runColor && QrCode.hasFinderLikePattern(runHistory))
 							result += QrCode.PENALTY_N3;
-						color = modules[y][x];
+						runColor = modules[y][x];
 						runX = 1;
 					}
 				}
 				QrCode.addRunToHistory(runX, runHistory);
-				if (color)
+				if (runColor)
 					QrCode.addRunToHistory(0, runHistory);  // Dummy run of white
 				if (QrCode.hasFinderLikePattern(runHistory))
 					result += QrCode.PENALTY_N3;
@@ -456,10 +456,10 @@ var qrcodegen = new function() {
 			// Adjacent modules in column having same color, and finder-like patterns
 			for (var x = 0; x < size; x++) {
 				var runHistory = [0,0,0,0,0,0,0];
-				var color = false;
+				var runColor = false;
 				var runY = 0;
 				for (var y = 0; y < size; y++) {
-					if (modules[y][x] == color) {
+					if (modules[y][x] == runColor) {
 						runY++;
 						if (runY == 5)
 							result += QrCode.PENALTY_N1;
@@ -467,14 +467,14 @@ var qrcodegen = new function() {
 							result++;
 					} else {
 						QrCode.addRunToHistory(runY, runHistory);
-						if (!color && QrCode.hasFinderLikePattern(runHistory))
+						if (!runColor && QrCode.hasFinderLikePattern(runHistory))
 							result += QrCode.PENALTY_N3;
-						color = modules[y][x];
+						runColor = modules[y][x];
 						runY = 1;
 					}
 				}
 				QrCode.addRunToHistory(runY, runHistory);
-				if (color)
+				if (runColor)
 					QrCode.addRunToHistory(0, runHistory);  // Dummy run of white
 				if (QrCode.hasFinderLikePattern(runHistory))
 					result += QrCode.PENALTY_N3;
diff --git a/python/qrcodegen.py b/python/qrcodegen.py
index e27615b..40487da 100644
--- a/python/qrcodegen.py
+++ b/python/qrcodegen.py
@@ -465,10 +465,10 @@ class QrCode(object):
 		# Adjacent modules in row having same color, and finder-like patterns
 		for y in range(size):
 			runhistory = collections.deque([0] * 7, 7)
-			color = False
+			runcolor = False
 			runx = 0
 			for x in range(size):
-				if modules[y][x] == color:
+				if modules[y][x] == runcolor:
 					runx += 1
 					if runx == 5:
 						result += QrCode._PENALTY_N1
@@ -476,22 +476,22 @@ class QrCode(object):
 						result += 1
 				else:
 					runhistory.appendleft(runx)
-					if not color and QrCode.has_finder_like_pattern(runhistory):
+					if not runcolor and QrCode.has_finder_like_pattern(runhistory):
 						result += QrCode._PENALTY_N3
-					color = modules[y][x]
+					runcolor = modules[y][x]
 					runx = 1
 			runhistory.appendleft(runx)
-			if color:
+			if runcolor:
 				runhistory.appendleft(0)  # Dummy run of white
 			if QrCode.has_finder_like_pattern(runhistory):
 				result += QrCode._PENALTY_N3
 		# Adjacent modules in column having same color, and finder-like patterns
 		for x in range(size):
 			runhistory = collections.deque([0] * 7, 7)
-			color = False
+			runcolor = False
 			runy = 0
 			for y in range(size):
-				if modules[y][x] == color:
+				if modules[y][x] == runcolor:
 					runy += 1
 					if runy == 5:
 						result += QrCode._PENALTY_N1
@@ -499,12 +499,12 @@ class QrCode(object):
 						result += 1
 				else:
 					runhistory.appendleft(runy)
-					if not color and QrCode.has_finder_like_pattern(runhistory):
+					if not runcolor and QrCode.has_finder_like_pattern(runhistory):
 						result += QrCode._PENALTY_N3
-					color = modules[y][x]
+					runcolor = modules[y][x]
 					runy = 1
 			runhistory.appendleft(runy)
-			if color:
+			if runcolor:
 				runhistory.appendleft(0)  # Dummy run of white
 			if QrCode.has_finder_like_pattern(runhistory):
 				result += QrCode._PENALTY_N3
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 4fedaba..d337040 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -643,10 +643,10 @@ impl QrCode {
 		// Adjacent modules in row having same color, and finder-like patterns
 		for y in 0 .. size {
 			let mut runhistory = RunHistory::new();
-			let mut color = false;
+			let mut runcolor = false;
 			let mut runx: i32 = 0;
 			for x in 0 .. size {
-				if self.module(x, y) == color {
+				if self.module(x, y) == runcolor {
 					runx += 1;
 					if runx == 5 {
 						result += PENALTY_N1;
@@ -655,15 +655,15 @@ impl QrCode {
 					}
 				} else {
 					runhistory.add_run(runx);
-					if !color && runhistory.has_finder_like_pattern() {
+					if !runcolor && runhistory.has_finder_like_pattern() {
 						result += PENALTY_N3;
 					}
-					color = self.module(x, y);
+					runcolor = self.module(x, y);
 					runx = 1;
 				}
 			}
 			runhistory.add_run(runx);
-			if color {
+			if runcolor {
 				runhistory.add_run(0);  // Dummy run of white
 			}
 			if runhistory.has_finder_like_pattern() {
@@ -673,10 +673,10 @@ impl QrCode {
 		// Adjacent modules in column having same color, and finder-like patterns
 		for x in 0 .. size {
 			let mut runhistory = RunHistory::new();
-			let mut color = false;
+			let mut runcolor = false;
 			let mut runy: i32 = 0;
 			for y in 0 .. size {
-				if self.module(x, y) == color {
+				if self.module(x, y) == runcolor {
 					runy += 1;
 					if runy == 5 {
 						result += PENALTY_N1;
@@ -685,15 +685,15 @@ impl QrCode {
 					}
 				} else {
 					runhistory.add_run(runy);
-					if !color && runhistory.has_finder_like_pattern() {
+					if !runcolor && runhistory.has_finder_like_pattern() {
 						result += PENALTY_N3;
 					}
-					color = self.module(x, y);
+					runcolor = self.module(x, y);
 					runy = 1;
 				}
 			}
 			runhistory.add_run(runy);
-			if color {
+			if runcolor {
 				runhistory.add_run(0);  // Dummy run of white
 			}
 			if runhistory.has_finder_like_pattern() {
diff --git a/typescript/qrcodegen.ts b/typescript/qrcodegen.ts
index 2d6677e..7366757 100644
--- a/typescript/qrcodegen.ts
+++ b/typescript/qrcodegen.ts
@@ -513,10 +513,10 @@ namespace qrcodegen {
 			// Adjacent modules in row having same color, and finder-like patterns
 			for (let y = 0; y < this.size; y++) {
 				let runHistory = [0,0,0,0,0,0,0];
-				let color = false;
+				let runColor = false;
 				let runX = 0;
 				for (let x = 0; x < this.size; x++) {
-					if (this.modules[y][x] == color) {
+					if (this.modules[y][x] == runColor) {
 						runX++;
 						if (runX == 5)
 							result += QrCode.PENALTY_N1;
@@ -524,14 +524,14 @@ namespace qrcodegen {
 							result++;
 					} else {
 						QrCode.addRunToHistory(runX, runHistory);
-						if (!color && QrCode.hasFinderLikePattern(runHistory))
+						if (!runColor && QrCode.hasFinderLikePattern(runHistory))
 							result += QrCode.PENALTY_N3;
-						color = this.modules[y][x];
+						runColor = this.modules[y][x];
 						runX = 1;
 					}
 				}
 				QrCode.addRunToHistory(runX, runHistory);
-				if (color)
+				if (runColor)
 					QrCode.addRunToHistory(0, runHistory);  // Dummy run of white
 				if (QrCode.hasFinderLikePattern(runHistory))
 					result += QrCode.PENALTY_N3;
@@ -539,10 +539,10 @@ namespace qrcodegen {
 			// Adjacent modules in column having same color, and finder-like patterns
 			for (let x = 0; x < this.size; x++) {
 				let runHistory = [0,0,0,0,0,0,0];
-				let color = false;
+				let runColor = false;
 				let runY = 0;
 				for (let y = 0; y < this.size; y++) {
-					if (this.modules[y][x] == color) {
+					if (this.modules[y][x] == runColor) {
 						runY++;
 						if (runY == 5)
 							result += QrCode.PENALTY_N1;
@@ -550,14 +550,14 @@ namespace qrcodegen {
 							result++;
 					} else {
 						QrCode.addRunToHistory(runY, runHistory);
-						if (!color && QrCode.hasFinderLikePattern(runHistory))
+						if (!runColor && QrCode.hasFinderLikePattern(runHistory))
 							result += QrCode.PENALTY_N3;
-						color = this.modules[y][x];
+						runColor = this.modules[y][x];
 						runY = 1;
 					}
 				}
 				QrCode.addRunToHistory(runY, runHistory);
-				if (color)
+				if (runColor)
 					QrCode.addRunToHistory(0, runHistory);  // Dummy run of white
 				if (QrCode.hasFinderLikePattern(runHistory))
 					result += QrCode.PENALTY_N3;