diff --git a/src/fileio/tagfile.hpp b/src/fileio/tagfile.hpp
index 0360be3d..6bde9c87 100644
--- a/src/fileio/tagfile.hpp
+++ b/src/fileio/tagfile.hpp
@@ -35,12 +35,12 @@ protected:
 
 	template<typename T>
 	static void readValueFrom(std::istream& file, T& to) {
-		file >> to;
+		file >> std::boolalpha >> to;
 	}
 	
 	template<typename T>
 	static void writeValueTo(std::ostream& file, const T& from) {
-		file << from;
+		file << std::boolalpha << from;
 	}
 	
 	template<typename A, typename B>
@@ -111,7 +111,7 @@ public:
 };
 
 template<typename Self>
-class cTagFile_MultiPage : public cTagFile_Page {
+class pMultiPage : public cTagFile_Page {
 	std::shared_ptr<Self> next;
 public:
 	using cTagFile_Page::cTagFile_Page;
@@ -164,10 +164,10 @@ public:
 	void writeTo(std::ostream& file);
 };
 
-template<typename T> class cTagFile_ArrayTag;
+template<typename T> class tArrayTag;
 
 template<typename T>
-class cTagFile_BasicTag : public cTagFile_Tag {
+class tBasicTag : public cTagFile_Tag {
 	T value;
 public:
 	using cTagFile_Tag::cTagFile_Tag;
@@ -180,7 +180,7 @@ public:
 		file << '\n';
 	}
 	operator T() const { return value; }
-	cTagFile_BasicTag operator=(const T& new_value) { value = new_value; return *this; }
+	tBasicTag operator=(const T& new_value) { value = new_value; return *this; }
 	T& operator*() { return value; }
 	const T& operator*() const { return value; }
 	T* operator->() { return &value; }
@@ -190,7 +190,30 @@ public:
 };
 
 template<typename T>
-class cTagFile_OptionalTag : public cTagFile_Tag {
+class tHexTag : public cTagFile_Tag {
+	T value;
+public:
+	using cTagFile_Tag::cTagFile_Tag;
+	void readFrom(const std::string&, std::istream& file) override {
+		readValueFrom(file, value);
+	}
+	void writeTo(const std::string& key, std::ostream& file) override {
+		file << key << ' ' << std::hex;
+		writeValueTo(file, value);
+		file << std::dec << '\n';
+	}
+	operator T() const { return value; }
+	tHexTag operator=(const T& new_value) { value = new_value; return *this; }
+	T& operator*() { return value; }
+	const T& operator*() const { return value; }
+	T* operator->() { return &value; }
+	const T* operator->() const { return &value; }
+	bool operator==(const T& other) { return value == other; }
+	bool operator!=(const T& other) { return value != other; }
+};
+
+template<typename T>
+class tOptionalTag : public cTagFile_Tag {
 	boost::optional<T> value;
 public:
 	using cTagFile_Tag::cTagFile_Tag;
@@ -206,8 +229,8 @@ public:
 		}
 	}
 	const T& get() const { return *value; }
-	cTagFile_OptionalTag operator=(const T& new_value) { value = new_value; return *this; }
-	cTagFile_OptionalTag operator=(boost::none_t) { value.reset(); return *this; }
+	tOptionalTag operator=(const T& new_value) { value = new_value; return *this; }
+	tOptionalTag operator=(boost::none_t) { value.reset(); return *this; }
 	T& operator*() { return value; }
 	const T& operator*() const { return value; }
 	T* operator->() { return &value; }
@@ -219,7 +242,7 @@ public:
 };
 
 template<>
-class cTagFile_OptionalTag<bool> : public cTagFile_Tag {
+class tOptionalTag<bool> : public cTagFile_Tag {
 	bool value = false;
 public:
 	using cTagFile_Tag::cTagFile_Tag;
@@ -232,7 +255,7 @@ public:
 		}
 	}
 	const bool& get() const { return value; }
-	cTagFile_OptionalTag operator=(const bool& new_value) { value = new_value; return *this; }
+	tOptionalTag operator=(const bool& new_value) { value = new_value; return *this; }
 	bool& operator*() { return value; }
 	const bool& operator*() const { return value; }
 	bool operator==(const bool& other) { return value == other; }
@@ -242,7 +265,7 @@ public:
 };
 
 template<typename T>
-class cTagFile_ArrayTag : public cTagFile_Tag {
+class tArrayTag : public cTagFile_Tag {
 	std::vector<T> values;
 public:
 	using cTagFile_Tag::cTagFile_Tag;
diff --git a/test/tagfile.cpp b/test/tagfile.cpp
index bd53118a..4afe9506 100644
--- a/test/tagfile.cpp
+++ b/test/tagfile.cpp
@@ -11,54 +11,54 @@
 #include "catch.hpp"
 
 template<typename T>
-std::ostream& operator<<(std::ostream& os, const cTagFile_BasicTag<T>& tag) {
+std::ostream& operator<<(std::ostream& os, const tBasicTag<T>& tag) {
 	return os << T(tag);
 }
 
-class cSampleTagFilePage1 : public cTagFile_Page {
+class pSamplePage1 : public cTagFile_Page {
 public:
 	using cTagFile_Page::cTagFile_Page;
-	cTagFile_BasicTag<int> a{*this, "A"}, b{*this, "B"}, c{*this, "C"};
+	tBasicTag<int> a{*this, "A"}, b{*this, "B"}, c{*this, "C"};
 };
 
-class cSampleTagFilePage2 : public cTagFile_Page {
+class pSamplePage2 : public cTagFile_Page {
 public:
 	using cTagFile_Page::cTagFile_Page;
-	cTagFile_BasicTag<std::string> x{*this, "X"}, y{*this, "Y"}, z{*this, "Z"};
+	tBasicTag<std::string> x{*this, "X"}, y{*this, "Y"}, z{*this, "Z"};
 };
 
-class cSampleTagFile : public cTagFile {
+class fSampleTagFile : public cTagFile {
 public:
-	cSampleTagFilePage1 p1{*this};
-	cSampleTagFilePage2 p2{*this};
+	pSamplePage1 p1{*this};
+	pSamplePage2 p2{*this};
 };
 
-class cComplexTagFilePage : public cTagFile_Page {
+class pComplexPage : public cTagFile_Page {
 public:
 	using cTagFile_Page::cTagFile_Page;
-	cTagFile_BasicTag<int> id{*this, "ID"};
-	cTagFile_ArrayTag<std::string> strings{*this, "STRING"};
-	cTagFile_ArrayTag<std::pair<int, int>> locations{*this, "LOC"};
-	cTagFile_OptionalTag<int> filter{*this, "FILTER"};
-	cTagFile_OptionalTag<int> count{*this, "COUNT"};
-	cTagFile_OptionalTag<bool> yes{*this, "YES"};
-	cTagFile_OptionalTag<bool> no{*this, "NO"};
-	cTagFile_BasicTag<bool> enable{*this, "ENABLE"};
+	tBasicTag<int> id{*this, "ID"};
+	tArrayTag<std::string> strings{*this, "STRING"};
+	tArrayTag<std::pair<int, int>> locations{*this, "LOC"};
+	tOptionalTag<int> filter{*this, "FILTER"};
+	tOptionalTag<int> count{*this, "COUNT"};
+	tOptionalTag<bool> yes{*this, "YES"};
+	tOptionalTag<bool> no{*this, "NO"};
+	tBasicTag<bool> enable{*this, "ENABLE"};
 };
 
-class cTagFileSampleMultiPage : public cTagFile_MultiPage<cTagFileSampleMultiPage> {
+class pSampleMultiPage : public pMultiPage<pSampleMultiPage> {
 public:
-	using cTagFile_MultiPage::cTagFile_MultiPage;
-	cTagFile_BasicTag<char> id{*this, "ID"};
-	cTagFile_BasicTag<int> value{*this, "VALUE"};
-	cTagFile_BasicTag<std::string> comment{*this, "COMMENT"};
+	using pMultiPage::pMultiPage;
+	tBasicTag<char> id{*this, "ID"};
+	tBasicTag<int> value{*this, "VALUE"};
+	tBasicTag<std::string> comment{*this, "COMMENT"};
 };
 
-class cComplexTagFile : public cTagFile {
+class fComplexTagFile : public cTagFile {
 public:
-	cSampleTagFilePage1 p1{*this};
-	cComplexTagFilePage p2{*this};
-	cTagFileSampleMultiPage p3{*this};
+	pSamplePage1 p1{*this};
+	pComplexPage p2{*this};
+	pSampleMultiPage p3{*this};
 };
 
 TEST_CASE("Simple tag file") {
@@ -71,7 +71,7 @@ TEST_CASE("Simple tag file") {
 	"Y foo\n"
 	"Z Blah!\n"
 	;
-	cSampleTagFile content;
+	fSampleTagFile content;
 	SECTION("output") {
 		std::ostringstream file;
 		content.p1.a = 12;
@@ -123,7 +123,7 @@ TEST_CASE("Complex tag file") {
 	"VALUE 90\n"
 	"COMMENT \"It's great!\"\n"
 	;
-	cComplexTagFile content;
+	fComplexTagFile content;
 	SECTION("output") {
 		std::ostringstream file;
 		content.p1.a = 12;