diff --git a/PanoPainter.vcxproj b/PanoPainter.vcxproj
index 5afadfe..2f9c14a 100644
--- a/PanoPainter.vcxproj
+++ b/PanoPainter.vcxproj
@@ -77,7 +77,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
-    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;libs\sqlite3;libs\openvr\headers;libs\nanort;libs\hash-library;$(IncludePath)</IncludePath>
+    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;libs\sqlite3;libs\openvr\headers;libs\nanort;libs\hash-library;libs\fmt\include;$(IncludePath)</IncludePath>
     <LibraryPath>libs\curl-win\lib\dll-$(Configuration)-$(PlatformShortName);libs\glew-2.0.0\lib\Release\$(Platform);libs\bugtrap-client\lib;libs\openvr\lib\win64;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -87,7 +87,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LinkIncremental>false</LinkIncremental>
-    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;libs\sqlite3;libs\openvr\headers;libs\nanort;libs\hash-library;$(IncludePath)</IncludePath>
+    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;libs\sqlite3;libs\openvr\headers;libs\nanort;libs\hash-library;libs\fmt\include;$(IncludePath)</IncludePath>
     <LibraryPath>libs\curl-win\lib\dll-$(Configuration)-$(PlatformShortName);libs\glew-2.0.0\lib\Release\$(Platform);libs\bugtrap-client\lib;libs\openvr\lib\win64;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
@@ -169,6 +169,14 @@
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="libs\fmt\src\format.cc">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="libs\fmt\src\posix.cc">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
+    </ClCompile>
     <ClCompile Include="libs\hash-library\md5.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
diff --git a/PanoPainter.vcxproj.filters b/PanoPainter.vcxproj.filters
index accaeb7..308fe48 100644
--- a/PanoPainter.vcxproj.filters
+++ b/PanoPainter.vcxproj.filters
@@ -49,6 +49,9 @@
     <Filter Include="libs\hash">
       <UniqueIdentifier>{2a784067-6741-47a3-b668-cc45f2224286}</UniqueIdentifier>
     </Filter>
+    <Filter Include="libs\fmt">
+      <UniqueIdentifier>{7b4f5b47-7a8b-4e4c-9e82-399bb5047ffc}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\app.cpp">
@@ -291,6 +294,12 @@
     <ClCompile Include="src\abr.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="libs\fmt\src\format.cc">
+      <Filter>libs\fmt</Filter>
+    </ClCompile>
+    <ClCompile Include="libs\fmt\src\posix.cc">
+      <Filter>libs\fmt</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\app.h">
diff --git a/src/abr.cpp b/src/abr.cpp
index a7a6970..37c40bd 100644
--- a/src/abr.cpp
+++ b/src/abr.cpp
@@ -45,6 +45,8 @@ bool ABR::section_desc()
     auto name = rkey_or_string();
     auto list = rstring(4);
     auto list_val = call(list);
+    auto out = list_val->str(0, "");
+    std::cout << out;
     return true;
 }
 
@@ -66,14 +68,14 @@ std::shared_ptr<ABR::List> ABR::parse_vlls()
 {
     auto ret = std::make_shared<List>();
     auto count = ru32();
-    printf("list: %d\n", count);
+    //printf("list: %d\n", count);
     for (int i = 0; i < count; i++)
     {
         auto type = rstring(4);
         auto item = call(type);
         if (!item)
             return nullptr;
-        ret->children.push_back(item);
+        ret->items.push_back(item);
     }
     return ret;
 }
@@ -82,7 +84,7 @@ std::shared_ptr<ABR::String> ABR::parse_text()
 {
     auto ret = std::make_shared<String>();
     ret->value = rwstring();
-    wprintf(L"text: %s\n", ret->value.c_str());
+    //wprintf(L"text: %s\n", ret->value.c_str());
     return ret;
 }
 
@@ -100,7 +102,7 @@ std::shared_ptr<ABR::Descriptor> ABR::parse_objc()
     ret->name = rwstring();
     ret->class_id = rkey_or_string();
     auto count = ru32();
-    printf("objc type %s, %d props\n", ret->class_id.c_str(), count);
+    //printf("objc type %s, %d props\n", ret->class_id.c_str(), count);
     for (int i = 0; i < count; i++)
     {
         auto key = rkey_or_string();
@@ -121,7 +123,7 @@ std::shared_ptr<ABR::UnitFloat> ABR::parse_untf()
     auto ret = std::make_shared<UnitFloat>();
     ret->unit = rstring(4);
     ret->value = rdbl();
-    printf("float %s: %f\n", ret->unit.c_str(), ret->value);
+    //printf("float %s: %f\n", ret->unit.c_str(), ret->value);
     return ret;
 }
 
@@ -129,7 +131,7 @@ std::shared_ptr<ABR::Boolean> ABR::parse_bool()
 {
     auto ret = std::make_shared<Boolean>();
     ret->value = ru8();
-    printf("bool: %s\n", ret->value ? "true" : "false");
+    //printf("bool: %s\n", ret->value ? "true" : "false");
     return ret;
 }
 
@@ -137,7 +139,7 @@ std::shared_ptr<ABR::Integer> ABR::parse_long()
 {
     auto ret = std::make_shared<Integer>();
     ret->value = ru32();
-    printf("long: %d\n", ret->value);
+    //printf("long: %d\n", ret->value);
     return ret;
 }
 
@@ -145,7 +147,7 @@ std::shared_ptr<ABR::Double> ABR::parse_doub()
 {
     auto ret = std::make_shared<Double>();
     ret->value = rdbl();
-    printf("double: %d\n", ret->value);
+    //printf("double: %d\n", ret->value);
     return ret;
 }
 
@@ -154,7 +156,7 @@ std::shared_ptr<ABR::Enum> ABR::parse_enum()
     auto ret = std::make_shared<Enum>();
     auto t = rkey_or_string();
     auto e = rkey_or_string();
-    printf("enum: %s %s\n", t.c_str(), e.c_str());
+    //printf("enum: %s %s\n", t.c_str(), e.c_str());
     return ret;
 }
 
diff --git a/src/abr.h b/src/abr.h
index 3f44f4c..aee157d 100644
--- a/src/abr.h
+++ b/src/abr.h
@@ -1,6 +1,8 @@
 #pragma once
 #include "asset.h"
 #include <codecvt>
+#include <fmt/core.h>
+#include "util.h"
 
 class BinaryStream
 {
@@ -31,9 +33,9 @@ public:
         m_byte_order = byte_order;
         m_swap = byte_order == ByteOrder::Host ? false : byte_order != sys_order();
     }
-    inline void skip(size_t bytes) { m_cur += bytes; }
-    inline bool eof() { return std::distance(m_ptr, m_cur) >= m_size; }
-    inline bool has_data(size_t sz) { return std::distance(m_ptr, m_cur + sz) < m_size; }
+    void skip(size_t bytes) { m_cur += bytes; }
+    bool eof() { return std::distance(m_ptr, m_cur) >= m_size; }
+    bool has_data(size_t sz) { return std::distance(m_ptr, m_cur + sz) < m_size; }
     uint8_t  ru8()  { return read<uint8_t>(); }
     uint16_t ru16() { return m_swap ? swap(read<uint16_t>()) : read<uint16_t>(); }
     uint32_t ru32() { return m_swap ? swap(read<uint32_t>()) : read<uint32_t>(); }
@@ -45,21 +47,23 @@ public:
     float rflt() { return read<float>(); }
     double rdbl() { return read<double>(); }
     std::string pick(size_t chars) { return { (char*)m_cur, chars }; }
-    std::string rstring() { auto len = ru32(); return { advance<char>(len), len }; }
+    std::string rstring() 
+    {
+        auto len = ru32();
+        return { advance<char>(len), len };
+    }
     std::string rstring(size_t len) { return { advance<char>(len), len }; }
-    std::wstring rwstring() { auto len = ru32(); return rwstring(len); }
-    std::wstring rwstring(size_t len) { 
-        //std::wstring_convert<std::codecvt_utf16<char>> conv;
-        char* ptr = advance<char>(len * 2);
+    std::wstring rwstring() 
+    { 
+        auto len = ru32();
+        return rwstring(len); 
+    }
+    std::wstring rwstring(size_t len) 
+    { 
+        auto ptr = advance<char>(len * 2);
         for (int i = 0; i < len; i++)
             std::swap(ptr[i * 2], ptr[i * 2 + 1]);
-        //auto s = conv.from_bytes(ptr, ptr + len);
-        wchar_t* wptr = (wchar_t*)ptr;
-        //std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> convert;
-        //std::string utf8 = convert.to_bytes(wptr, wptr + len);
-        //std::wstring ws(len, 0);
-        //mbsrtowcs((wchar_t*)ws.data(), (const char**)&ptr, len, nullptr);
-        return std::wstring(wptr, len);
+        return std::wstring((wchar_t*)ptr, len);
     }
 protected:
     template<typename T> inline T align4(T x) { return ((x - T{1}) & (~(T{3}))) + T{4}; }
@@ -127,43 +131,56 @@ private:
     ByteOrder m_byte_order = ByteOrder::Host;
 };
 
-static constexpr const uint32_t abr_s2sig(const char s[4])
-{
-    return (uint32_t)(s[0]) << 0 
-         | (uint32_t)(s[1]) << 8
-         | (uint32_t)(s[2]) << 16
-         | (uint32_t)(s[3]) << 24;
-}
-
-static constexpr const std::array<char, 5> abr_sig2sz(uint32_t x)
-{
-    return { 
-        (char)(x >> 0 ),
-        (char)(x >> 8 ),
-        (char)(x >> 16),
-        (char)(x >> 24),
-        0
-    };
-}
-
 class ABR : public BinaryStream
 {
-    struct Type { 
+    struct Type 
+    {
         using Vec = std::vector<std::shared_ptr<Type>>;
         using Map = std::map<std::string, std::shared_ptr<Type>>;
         using Ref = std::shared_ptr<Type>;
-        virtual std::string str() const { return "type"; }
+        virtual std::string str(int indent, const std::string& prefix) const
+        { 
+            return "type";
+        }
     };
     struct Class : public Type { };
     struct Property : public Type { };
     struct Reference : public Type { };
-    struct List : public Type{
-        Type::Vec children;
+    struct List : public Type
+    {
+        Type::Vec items;
+        virtual std::string str(int indent, const std::string& prefix) const override
+        {
+            //return std::string(indent, '-') + prefix + fmt::format("list: {} items", items.size());
+            auto ret = std::string(indent, '-') + fmt::format("list: {} props:\n", items.size());
+            for (int i = 0; i < items.size(); i++)
+                ret += items[i]->str(indent + 1, fmt::format("{}) ", i) + "\n");
+            return ret;
+        }
+    };
+    struct Double : public Type
+    {
+        double value;
+        virtual std::string str(int indent, const std::string& prefix) const override
+        { return std::string(indent, '-') + prefix + fmt::format("double: {}", value); }
+    };
+    struct UnitFloat : public Type
+    {
+        std::string unit;
+        double value;
+        virtual std::string str(int indent, const std::string& prefix) const override
+        { return std::string(indent, '-') + prefix + fmt::format("float: {} ({})", value, unit); }
+    };
+    struct String : public Type 
+    { 
+        std::wstring value;
+        virtual std::string str(int indent, const std::string& prefix) const override
+        { return std::string(indent, '-') + prefix + fmt::format("string: {}", wstr2str(value)); }
+    };
+    struct Enum : public Type
+    {
+
     };
-    struct Double : public Type { double value; };
-    struct UnitFloat : public Type { std::string unit; double value; };
-    struct String : public Type { std::wstring value; };
-    struct Enum : public Type { };
     struct EnumRef : public Type { };
     struct Offset : public Type { };
     struct Identifier : public Type { };
@@ -172,12 +189,15 @@ class ABR : public BinaryStream
     struct Integer : public Type 
     { 
         int32_t value; 
+        virtual std::string str(int indent, const std::string& prefix) const override
+        { return std::string(indent, '-') + prefix + fmt::format("int: {}", value); }
     };
     struct LargeInteger : public Type { };
     struct Boolean : public Type 
     { 
         bool value; 
-        virtual std::string str() const override { return "Boolean: " + ; }
+        virtual std::string str(int indent, const std::string& prefix) const override
+        { return std::string(indent, '-') + prefix + fmt::format("bool: {}", value); }
     };
     struct Alias : public Type { };
     struct Descriptor : public Type 
@@ -185,6 +205,13 @@ class ABR : public BinaryStream
         std::wstring name;
         std::string class_id;
         Type::Map props;
+        virtual std::string str(int indent, const std::string& prefix) const override
+        {
+            auto ret = std::string(indent, '-') + fmt::format("objc: {} props:", props.size());
+            for (const auto& p : props)
+                ret += "\n" + p.second->str(indent + 1, fmt::format("'{}' ", p.first));
+            return ret;
+        }
     };
 
 public: