diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -1,6 +1,6 @@
 -- This file is part of Qtah.
 --
--- Copyright 2015-2017 The Qtah Authors.
+-- Copyright 2015-2018 The Qtah Authors.
 --
 -- This program is free software: you can redistribute it and/or modify
 -- it under the terms of the GNU Lesser General Public License as published by
@@ -16,14 +16,23 @@
 -- along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 {-# OPTIONS_GHC -W -fwarn-incomplete-patterns -fwarn-unused-do-bind #-}
+{-# LANGUAGE CPP #-}
 
 import Control.Applicative ((<|>))
 import Control.Monad (unless, when)
 import Data.Char (isDigit)
 import Data.List (isPrefixOf, isSuffixOf)
 import Data.Maybe (fromMaybe)
-import Distribution.Package (PackageName (PackageName), pkgName)
-import Distribution.PackageDescription (FlagName (FlagName), PackageDescription, package)
+import Distribution.Package (pkgName, unPackageName)
+import Distribution.PackageDescription (
+  PackageDescription,
+  package,
+#if MIN_VERSION_Cabal(2,0,0)
+  FlagName, mkFlagName,
+#else
+  FlagName (FlagName),
+#endif
+  )
 import Distribution.Simple (defaultMainWithHooks, simpleUserHooks)
 import Distribution.Simple.LocalBuildInfo (
   LocalBuildInfo,
@@ -87,6 +96,10 @@
 import System.FilePath ((</>), takeDirectory)
 import System.Process (callProcess)
 
+#if !MIN_VERSION_Cabal(2,0,0)
+mkFlagName = FlagName
+#endif
+
 packageName :: String
 -- Careful, this line is modified by set-qt-version.sh.
 packageName = "qtah-cpp-qt5"
@@ -247,8 +260,8 @@
   -- Determine what version of Qt to use.  If we have a Qt version preference
   -- specified, either through package flags or through QTAH_QT, then
   -- maybeQtMajor will get that value.
-  let PackageName myName = pkgName $ package $ localPkgDescr localBuildInfo
-  maybeQtMajor <- case reverse myName of
+  let myName = pkgName $ package $ localPkgDescr localBuildInfo
+  maybeQtMajor <- case reverse $ unPackageName myName of
     -- If the package name ends in "-qtX", then build for Qt X (whatever the
     -- available minor version is).  Ignore QTAH_QT and package flags.
     n:'t':'q':'-':_ | isDigit n -> do
@@ -260,8 +273,8 @@
     _ -> do
       -- Inspect the 'qt4' and 'qt5' package flags.
       let flags = configConfigurationsFlags configFlags
-          qt4Flag = fromMaybe False $ lookup (FlagName "qt4") flags
-          qt5Flag = fromMaybe False $ lookup (FlagName "qt5") flags
+          qt4Flag = fromMaybe False $ lookup (mkFlagName "qt4") flags
+          qt5Flag = fromMaybe False $ lookup (mkFlagName "qt5") flags
           qtFlag = if qt4Flag then Just 4 else if qt5Flag then Just 5 else Nothing
       when (qt4Flag && qt5Flag) $
         die $ concat
diff --git a/cpp/encode.cpp b/cpp/encode.cpp
--- a/cpp/encode.cpp
+++ b/cpp/encode.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/encode.hpp b/cpp/encode.hpp
--- a/cpp/encode.hpp
+++ b/cpp/encode.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/event.hpp b/cpp/event.hpp
--- a/cpp/event.hpp
+++ b/cpp/event.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/qtah.pro b/cpp/qtah.pro
--- a/cpp/qtah.pro
+++ b/cpp/qtah.pro
@@ -1,6 +1,6 @@
 # This file is part of Qtah.
 #
-# Copyright 2015-2017 The Qtah Authors.
+# Copyright 2015-2018 The Qtah Authors.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/qtahopenglwindow.hpp b/cpp/qtahopenglwindow.hpp
--- a/cpp/qtahopenglwindow.hpp
+++ b/cpp/qtahopenglwindow.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/qtahrasterwindow.hpp b/cpp/qtahrasterwindow.hpp
--- a/cpp/qtahrasterwindow.hpp
+++ b/cpp/qtahrasterwindow.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qapplication.cpp b/cpp/wrap_qapplication.cpp
--- a/cpp/wrap_qapplication.cpp
+++ b/cpp/wrap_qapplication.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
@@ -33,6 +33,14 @@
     }
 
     return new QApplication(*argc, argv);
+}
+
+QFont fontWithClass(const QString& className) {
+    return QApplication::font(className.toStdString().c_str());
+}
+
+void setFontWithClass(const QFont& font, const QString& className) {
+    QApplication::setFont(font, className.toStdString().c_str());
 }
 
 }  // namespace qapplication
diff --git a/cpp/wrap_qapplication.hpp b/cpp/wrap_qapplication.hpp
--- a/cpp/wrap_qapplication.hpp
+++ b/cpp/wrap_qapplication.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
@@ -19,12 +19,18 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <QApplication>
+#include <QFont>
+#include <QString>
 #include <QStringList>
 
 namespace qtah {
 namespace qapplication {
 
 QApplication* create(const QStringList&);
+
+QFont fontWithClass(const QString& className);
+
+void setFontWithClass(const QFont&, const QString&);
 
 }  // namespace qapplication
 }  // namespace qtah
diff --git a/cpp/wrap_qcoreapplication.cpp b/cpp/wrap_qcoreapplication.cpp
--- a/cpp/wrap_qcoreapplication.cpp
+++ b/cpp/wrap_qcoreapplication.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qcoreapplication.hpp b/cpp/wrap_qcoreapplication.hpp
--- a/cpp/wrap_qcoreapplication.hpp
+++ b/cpp/wrap_qcoreapplication.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qformlayout.cpp b/cpp/wrap_qformlayout.cpp
--- a/cpp/wrap_qformlayout.cpp
+++ b/cpp/wrap_qformlayout.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qformlayout.hpp b/cpp/wrap_qformlayout.hpp
--- a/cpp/wrap_qformlayout.hpp
+++ b/cpp/wrap_qformlayout.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qgridlayout.cpp b/cpp/wrap_qgridlayout.cpp
--- a/cpp/wrap_qgridlayout.cpp
+++ b/cpp/wrap_qgridlayout.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qgridlayout.hpp b/cpp/wrap_qgridlayout.hpp
--- a/cpp/wrap_qgridlayout.hpp
+++ b/cpp/wrap_qgridlayout.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qimage.cpp b/cpp/wrap_qimage.cpp
--- a/cpp/wrap_qimage.cpp
+++ b/cpp/wrap_qimage.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
@@ -79,6 +79,11 @@
     return new QImage(fileName, formatStr.c_str());
 }
 
+QImage* fromData(const QByteArray& data, const QString& format) {
+    std::string formatStr(format.toStdString());
+    return new QImage(QImage::fromData(data, formatStr.c_str()));
+}
+
 QImage* fromData(const uchar* data, int len, const QString& format) {
     std::string formatStr(format.toStdString());
     return new QImage(QImage::fromData(data, len, formatStr.c_str()));
@@ -87,6 +92,11 @@
 bool load(QImage& image, const QString& fileName, const QString& format) {
     std::string formatStr(format.toStdString());
     return image.load(fileName, formatStr.c_str());
+}
+
+bool loadFromData(QImage& image, const QByteArray& data, const QString& format) {
+    std::string formatStr(format.toStdString());
+    return image.loadFromData(data, formatStr.c_str());
 }
 
 bool loadFromData(QImage& image, const uchar* data, int len, const QString& format) {
diff --git a/cpp/wrap_qimage.hpp b/cpp/wrap_qimage.hpp
--- a/cpp/wrap_qimage.hpp
+++ b/cpp/wrap_qimage.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
@@ -18,6 +18,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+#include <QByteArray>
 #include <QImage>
 #include <QtGlobal>
 #include "b_callback.hpp"
@@ -35,7 +36,11 @@
 
 QImage* fromData(const uchar*, int, const QString&);
 
+QImage* fromData(const QByteArray&, const QString&);
+
 bool load(QImage&, const QString&, const QString&);
+
+bool loadFromData(QImage&, const QByteArray&, const QString&);
 
 bool loadFromData(QImage&, const uchar*, int, const QString&);
 
diff --git a/cpp/wrap_qstring.cpp b/cpp/wrap_qstring.cpp
--- a/cpp/wrap_qstring.cpp
+++ b/cpp/wrap_qstring.cpp
@@ -1,6 +1,6 @@
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/cpp/wrap_qstring.hpp b/cpp/wrap_qstring.hpp
--- a/cpp/wrap_qstring.hpp
+++ b/cpp/wrap_qstring.hpp
@@ -3,7 +3,7 @@
 
 // This file is part of Qtah.
 //
-// Copyright 2015-2017 The Qtah Authors.
+// Copyright 2015-2018 The Qtah Authors.
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
diff --git a/qtah-cpp-qt5.cabal b/qtah-cpp-qt5.cabal
--- a/qtah-cpp-qt5.cabal
+++ b/qtah-cpp-qt5.cabal
@@ -1,12 +1,12 @@
 name: qtah-cpp-qt5
-version: 0.3.1
+version: 0.4.0
 synopsis: Qt bindings for Haskell - C++ library
 homepage: http://khumba.net/projects/qtah
 license: LGPL-3
 license-files: LICENSE.GPL, LICENSE.LGPL
 author: Bryan Gardiner <bog@khumba.net>
 maintainer: Bryan Gardiner <bog@khumba.net>
-copyright: Copyright 2015-2017 The Qtah Authors.
+copyright: Copyright 2015-2018 The Qtah Authors.
 category: Graphics
 build-type: Custom
 -- Cabal 1.20 is needed for BuildFlags.buildNumJobs.
@@ -41,6 +41,14 @@
   exposed-modules: Graphics.UI.Qtah.NothingToSeeHere
   build-depends:
       base >=4 && <5
-    , process >=1.2 && <1.5
-    , qtah-generator >=0.3 && <0.4
+    , process >=1.2 && <1.7
+    , qtah-generator >=0.4 && <0.5
   ghc-options: -W -fwarn-incomplete-patterns -fwarn-unused-do-bind
+
+custom-setup
+  setup-depends:
+      base
+    , Cabal
+    , directory
+    , filepath
+    , process
diff --git a/src/Graphics/UI/Qtah/NothingToSeeHere.hs b/src/Graphics/UI/Qtah/NothingToSeeHere.hs
--- a/src/Graphics/UI/Qtah/NothingToSeeHere.hs
+++ b/src/Graphics/UI/Qtah/NothingToSeeHere.hs
@@ -1,6 +1,6 @@
 -- This file is part of Qtah.
 --
--- Copyright 2015-2017 The Qtah Authors.
+-- Copyright 2015-2018 The Qtah Authors.
 --
 -- This program is free software: you can redistribute it and/or modify
 -- it under the terms of the GNU Lesser General Public License as published by