diff --git a/src/Tracy/BlueScreen/BlueScreen.php b/src/Tracy/BlueScreen/BlueScreen.php
index 0a30592bf..acdae1e4a 100644
--- a/src/Tracy/BlueScreen/BlueScreen.php
+++ b/src/Tracy/BlueScreen/BlueScreen.php
@@ -255,7 +255,7 @@ private function renderActions(\Throwable $ex): array
 			}
 		}
 
-		if (preg_match('# ([\'"])((?:/|[a-z]:[/\\\\])\w[^\'"]+\.\w{2,5})\1#i', $ex->getMessage(), $m)) {
+		if (preg_match('# ([\'"])((?:/|[a-z]:[/\\\])\w[^\'"]+\.\w{2,5})\1#i', $ex->getMessage(), $m)) {
 			$file = $m[2];
 			if (@is_file($file)) { // @ - may trigger error
 				$label = 'open';
@@ -380,14 +380,14 @@ public function formatMessage(\Throwable $exception): string
 
 		// highlight 'string'
 		$msg = preg_replace(
-			'#\'\S(?:[^\']|\\\\\')*\S\'|"\S(?:[^"]|\\\\")*\S"#',
+			'#\'\S(?:[^\']|\\\\\')*\S\'|"\S(?:[^"]|\\\")*\S"#',
 			'<i>$0</i>',
 			$msg,
 		);
 
 		// clickable class & methods
 		$msg = preg_replace_callback(
-			'#(\w+\\\\[\w\\\\]+\w)(?:::(\w+))?#',
+			'#(\w+\\\[\w\\\]+\w)(?:::(\w+))?#',
 			function ($m) {
 				if (isset($m[2]) && method_exists($m[1], $m[2])) {
 					$r = new \ReflectionMethod($m[1], $m[2]);
@@ -406,7 +406,7 @@ function ($m) {
 
 		// clickable file name
 		$msg = preg_replace_callback(
-			'#([\w\\\\/.:-]+\.(?:php|phpt|phtml|latte|neon))(?|:(\d+)| on line (\d+))?#',
+			'#([\w\\\/.:-]+\.(?:php|phpt|phtml|latte|neon))(?|:(\d+)| on line (\d+))?#',
 			fn($m) => @is_file($m[1]) // @ - may trigger error
 				? '<a href="' . Helpers::escapeHtml(Helpers::editorUri($m[1], isset($m[2]) ? (int) $m[2] : null)) . '" class="tracy-editor">' . $m[0] . '</a>'
 				: $m[0],
diff --git a/src/Tracy/Debugger/Debugger.php b/src/Tracy/Debugger/Debugger.php
index e0c15229d..657076599 100644
--- a/src/Tracy/Debugger/Debugger.php
+++ b/src/Tracy/Debugger/Debugger.php
@@ -192,7 +192,7 @@ public static function enable(
 		self::$logDirectory = $logDirectory ?? self::$logDirectory;
 
 		if (self::$logDirectory) {
-			if (!preg_match('#([a-z]+:)?[/\\\\]#Ai', self::$logDirectory)) {
+			if (!preg_match('#([a-z]+:)?[/\\\]#Ai', self::$logDirectory)) {
 				self::exceptionHandler(new \RuntimeException('Logging directory must be absolute path.'));
 				exit(255);
 			} elseif (!is_dir(self::$logDirectory)) {
diff --git a/src/Tracy/Helpers.php b/src/Tracy/Helpers.php
index a47d36e3e..8c0e35876 100644
--- a/src/Tracy/Helpers.php
+++ b/src/Tracy/Helpers.php
@@ -183,20 +183,20 @@ public static function improveException(\Throwable $e): void
 				$message = str_replace($m[2], "but function '$arg' does not exist" . ($hint ? " (did you mean $hint?)" : ''), $message);
 			}
 
-		} elseif (preg_match('#^Call to undefined function (\S+\\\\)?(\w+)\(#', $message, $m)) {
+		} elseif (preg_match('#^Call to undefined function (\S+\\\)?(\w+)\(#', $message, $m)) {
 			$funcs = array_merge(get_defined_functions()['internal'], get_defined_functions()['user']);
 			if ($hint = self::getSuggestion($funcs, $m[1] . $m[2]) ?: self::getSuggestion($funcs, $m[2])) {
 				$message = "Call to undefined function $m[2](), did you mean $hint()?";
 				$replace = ["$m[2](", "$hint("];
 			}
 
-		} elseif (preg_match('#^Call to undefined method ([\w\\\\]+)::(\w+)#', $message, $m)) {
+		} elseif (preg_match('#^Call to undefined method ([\w\\\]+)::(\w+)#', $message, $m)) {
 			if ($hint = self::getSuggestion(get_class_methods($m[1]) ?: [], $m[2])) {
 				$message .= ", did you mean $hint()?";
 				$replace = ["$m[2](", "$hint("];
 			}
 
-		} elseif (preg_match('#^Undefined property: ([\w\\\\]+)::\$(\w+)#', $message, $m)) {
+		} elseif (preg_match('#^Undefined property: ([\w\\\]+)::\$(\w+)#', $message, $m)) {
 			$rc = new \ReflectionClass($m[1]);
 			$items = array_filter($rc->getProperties(\ReflectionProperty::IS_PUBLIC), fn($prop) => !$prop->isStatic());
 			if ($hint = self::getSuggestion($items, $m[2])) {
@@ -204,7 +204,7 @@ public static function improveException(\Throwable $e): void
 				$replace = ["->$m[2]", "->$hint"];
 			}
 
-		} elseif (preg_match('#^Access to undeclared static property:? ([\w\\\\]+)::\$(\w+)#', $message, $m)) {
+		} elseif (preg_match('#^Access to undeclared static property:? ([\w\\\]+)::\$(\w+)#', $message, $m)) {
 			$rc = new \ReflectionClass($m[1]);
 			$items = array_filter($rc->getProperties(\ReflectionProperty::IS_STATIC), fn($prop) => $prop->isPublic());
 			if ($hint = self::getSuggestion($items, $m[2])) {
@@ -232,7 +232,7 @@ public static function improveException(\Throwable $e): void
 	/** @internal */
 	public static function improveError(string $message): string
 	{
-		if (preg_match('#^Undefined property: ([\w\\\\]+)::\$(\w+)#', $message, $m)) {
+		if (preg_match('#^Undefined property: ([\w\\\]+)::\$(\w+)#', $message, $m)) {
 			$rc = new \ReflectionClass($m[1]);
 			$items = array_filter($rc->getProperties(\ReflectionProperty::IS_PUBLIC), fn($prop) => !$prop->isStatic());
 			$hint = self::getSuggestion($items, $m[2]);
diff --git a/src/Tracy/Logger/Logger.php b/src/Tracy/Logger/Logger.php
index 8bf426301..0f9fd0c63 100644
--- a/src/Tracy/Logger/Logger.php
+++ b/src/Tracy/Logger/Logger.php
@@ -128,7 +128,7 @@ public function getExceptionFile(\Throwable $exception, string $level = self::EX
 		}
 
 		$hash = substr(md5(serialize($data)), 0, 10);
-		$dir = strtr($this->directory . '/', '\\/', DIRECTORY_SEPARATOR . DIRECTORY_SEPARATOR);
+		$dir = strtr($this->directory . '/', '\/', DIRECTORY_SEPARATOR . DIRECTORY_SEPARATOR);
 		foreach (new \DirectoryIterator($this->directory) as $file) {
 			if (strpos($file->getBasename(), $hash)) {
 				return $dir . $file;
diff --git a/tests/Tracy/Debugger.E_COMPILE_ERROR.console.phpt b/tests/Tracy/Debugger.E_COMPILE_ERROR.console.phpt
index bcf29eb2b..eab95076e 100644
--- a/tests/Tracy/Debugger.E_COMPILE_ERROR.console.phpt
+++ b/tests/Tracy/Debugger.E_COMPILE_ERROR.console.phpt
@@ -26,7 +26,7 @@ register_shutdown_function(function () use (&$onFatalErrorCalled) {
 	Assert::true($onFatalErrorCalled);
 	Assert::match('ErrorException: Cannot re-assign $this in %a%
 Stack trace:
-#0 [internal function]: Tracy\\Debugger::shutdownHandler()
+#0 [internal function]: Tracy\Debugger::shutdownHandler()
 #1 {main}
 Tracy is unable to log error: Logging directory is not specified.
 ', ob_get_clean());
diff --git a/tests/Tracy/Debugger.barDump().phpt b/tests/Tracy/Debugger.barDump().phpt
index 0135d13ca..8884acfa3 100644
--- a/tests/Tracy/Debugger.barDump().phpt
+++ b/tests/Tracy/Debugger.barDump().phpt
@@ -26,7 +26,7 @@ Debugger::enable();
 
 register_shutdown_function(function () {
 	$output = ob_get_clean();
-	preg_match('#Tracy\.Debug\.init\((".*[^\\\\]")\)#', $output, $m);
+	preg_match('#Tracy\.Debug\.init\((".*[^\\\]")\)#', $output, $m);
 	$rawContent = str_replace('<\!--', '<!--', $m[1], $count);
 	$rawContent = json_decode($rawContent);
 	$panelContent = (string) DomQuery::fromHtml($rawContent)->find('#tracy-debug-panel-Tracy-dumps')[0]['data-tracy-content'];
diff --git a/tests/Tracy/Debugger.barDump().showLocation.phpt b/tests/Tracy/Debugger.barDump().showLocation.phpt
index d0c7e9eb6..6b601fb2b 100644
--- a/tests/Tracy/Debugger.barDump().showLocation.phpt
+++ b/tests/Tracy/Debugger.barDump().showLocation.phpt
@@ -27,7 +27,7 @@ Debugger::enable();
 
 register_shutdown_function(function () {
 	$output = ob_get_clean();
-	preg_match('#Tracy\.Debug\.init\((".*[^\\\\]")\)#', $output, $m);
+	preg_match('#Tracy\.Debug\.init\((".*[^\\\]")\)#', $output, $m);
 	$rawContent = json_decode($m[1]);
 	$panelContent = (string) DomQuery::fromHtml($rawContent)->find('#tracy-debug-panel-Tracy-dumps')[0]['data-tracy-content'];
 	Assert::match(<<<'XX'
@@ -36,7 +36,7 @@ register_shutdown_function(function () {
 		<div class="tracy-inner tracy-DumpPanel">
 
 			<pre class="tracy-dump tracy-light"
-		><a href="editor:%a%" class="tracy-dump-location" title="in file %a% on line %d%&#10;Click to open in editor">barDump('value') 📍</a
+		><a href="editor:%a%" class="tracy-dump-location" title="in file %a% on line %d%&#10;Click to open in editor">barDump('value') 📍</a
 		><span class="tracy-dump-string" title="5 characters"><span>'</span>value<span>'</span></span></pre>
 		</div>
 		%A%
diff --git a/tests/Tracy/Debugger.warnings.html.phpt b/tests/Tracy/Debugger.warnings.html.phpt
index 121ca1f9e..5fe80fb0c 100644
--- a/tests/Tracy/Debugger.warnings.html.phpt
+++ b/tests/Tracy/Debugger.warnings.html.phpt
@@ -26,7 +26,7 @@ Debugger::enable();
 
 register_shutdown_function(function () {
 	$output = ob_get_clean();
-	preg_match('#Tracy\.Debug\.init\((".*[^\\\\]")\)#', $output, $m);
+	preg_match('#Tracy\.Debug\.init\((".*[^\\\]")\)#', $output, $m);
 	$rawContent = json_decode($m[1]);
 	$panelContent = (string) DomQuery::fromHtml($rawContent)->find('#tracy-debug-panel-Tracy-errors')[0]['data-tracy-content'];
 	Assert::match(<<<'XX'
diff --git a/tests/Tracy/Dumper.toHtml().live.phpt b/tests/Tracy/Dumper.toHtml().live.phpt
index bb3ee9567..5195b4ce2 100644
--- a/tests/Tracy/Dumper.toHtml().live.phpt
+++ b/tests/Tracy/Dumper.toHtml().live.phpt
@@ -35,7 +35,7 @@ Assert::same([], Dumper::$liveSnapshot[0]);
 
 // live dump of array
 Assert::match(
-	'<pre class="tracy-dump" data-tracy-dump=\'[[0,null],[1,true],[2,false],[3,0],[4,{"number":"0.0"}],[5,"string"],[6,{"string":"\u0027\u0026amp;\"","length":3}],[7,{"string":"<i>\\\\x00</i>","length":1}],[8,{"number":"INF"}],[9,{"number":"-INF"}],[10,{"number":"NAN"}]]\'></pre>',
+	'<pre class="tracy-dump" data-tracy-dump=\'[[0,null],[1,true],[2,false],[3,0],[4,{"number":"0.0"}],[5,"string"],[6,{"string":"\u0027\u0026amp;\"","length":3}],[7,{"string":"<i>\\\x00</i>","length":1}],[8,{"number":"INF"}],[9,{"number":"-INF"}],[10,{"number":"NAN"}]]\'></pre>',
 	Dumper::toHtml([null, true, false, 0, 0.0, 'string', "'&\"", "\x00", INF, -INF, NAN], $options),
 );
 
diff --git a/tests/Tracy/Dumper.toHtml().phpt b/tests/Tracy/Dumper.toHtml().phpt
index 418a69406..b84901433 100644
--- a/tests/Tracy/Dumper.toHtml().phpt
+++ b/tests/Tracy/Dumper.toHtml().phpt
@@ -38,7 +38,7 @@ Assert::same('<pre class="tracy-dump tracy-light"><span class="tracy-dump-string
 
 Assert::same('<pre class="tracy-dump tracy-light"><span class="tracy-dump-string"><span>\'</span>0<span>\'</span></span></pre>' . "\n", Dumper::toHtml('0'));
 
-Assert::same('<pre class="tracy-dump tracy-light"><span class="tracy-dump-string"><span>\'</span><i>\\x00</i><span>\'</span></span></pre>' . "\n", Dumper::toHtml("\x00"));
+Assert::same('<pre class="tracy-dump tracy-light"><span class="tracy-dump-string"><span>\'</span><i>\x00</i><span>\'</span></span></pre>' . "\n", Dumper::toHtml("\x00"));
 
 Assert::match('<pre class="tracy-dump tracy-light"
 ><div class="tracy-dump-string" title="3 characters"><span class="tracy-dump-lq">\'</span>a<i>\n</i>' . "\n<span class=\"tracy-dump-indent\"> </span>b<span>'</span></div></pre>\n", Dumper::toHtml("a\nb"));
diff --git a/tests/Tracy/expected/Debugger.barDump().expect b/tests/Tracy/expected/Debugger.barDump().expect
index 4701fef93..f93fb52a2 100644
--- a/tests/Tracy/expected/Debugger.barDump().expect
+++ b/tests/Tracy/expected/Debugger.barDump().expect
@@ -7,12 +7,12 @@
 <div class="tracy-inner tracy-DumpPanel">
 
 	<pre class="tracy-dump tracy-light" data-tracy-snapshot='{"%d%":{"object":"stdClass","items":[["key1","val1",3],["key2",true,3]]}}' data-tracy-dump='[[0,10],[1,20.2],[2,true],[3,false],[4,null],[5,{"string":"hello \u0026lt;!-- \u0026lt;script> \u0026lt;/script>","length":29}],[6,[["key1","val1"],["key2",true]]],[7,{"ref":%d%}]]'
-><a href="editor://open/?file=%a%" class="tracy-dump-location" title="in file %a% on line %d%&#10;Click to open in editor">barDump($arr) 📍</a
+><a href="editor://open/?file=%a%" class="tracy-dump-location" title="in file %a% on line %d%&#10;Click to open in editor">barDump($arr) 📍</a
 ></pre>
 		<h2>String</h2>
 
 	<pre class="tracy-dump tracy-light" data-tracy-snapshot='[]' data-tracy-dump='{"string":"\u0026lt;a href=\"#\">test\u0026lt;/a>","length":20}'
-><a href="editor://open/?file=%a%" class="tracy-dump-location" title="in file %a% on line %d%&#10;Click to open in editor">barDump('&lt;a href="#">test&lt;/a>', 'String') 📍</a
+><a href="editor://open/?file=%a%" class="tracy-dump-location" title="in file %a% on line %d%&#10;Click to open in editor">barDump('&lt;a href="#">test&lt;/a>', 'String') 📍</a
 ></pre>
 </div>
 
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 034e73c12..79bd5d6c1 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -23,9 +23,9 @@ function getTempDir(): string
 {
 	$dir = __DIR__ . '/tmp/' . getmypid();
 
-	if (empty($GLOBALS['\\lock'])) {
+	if (empty($GLOBALS['\lock'])) {
 		// garbage collector
-		$GLOBALS['\\lock'] = $lock = fopen(__DIR__ . '/lock', 'w');
+		$GLOBALS['\lock'] = $lock = fopen(__DIR__ . '/lock', 'w');
 		if (rand(0, 100)) {
 			flock($lock, LOCK_SH);
 			@mkdir(dirname($dir));