Center wizard page and use "classic style"

src/blackgui/components/configurationwizard.ui

@@ -25,6 +25,9 @@
   <property name="modal">
    <bool>true</bool>
   </property>
+  <property name="wizardStyle">
+   <enum>QWizard::ClassicStyle</enum>
+  </property>
   <property name="options">
    <set>QWizard::HaveCustomButton1</set>
   </property>
@@ -140,8 +143,8 @@
         <rect>
          <x>0</x>
          <y>0</y>
-         <width>98</width>
+         <width>90</width>
-         <height>28</height>
+         <height>20</height>
         </rect>
        </property>
        <layout class="QVBoxLayout" name="vl_CopySettingsAndCacheWidget">
@@ -243,7 +246,7 @@
         <rect>
          <x>0</x>
          <y>0</y>
-         <width>98</width>
+         <width>89</width>
          <height>64</height>
         </rect>
        </property>
@@ -268,7 +271,7 @@
         <rect>
          <x>0</x>
          <y>0</y>
-         <width>98</width>
+         <width>75</width>
          <height>64</height>
         </rect>
        </property>

src/blackgui/guiutility.cpp

@@ -572,6 +572,29 @@ namespace BlackGui
         return QSizeF(w, h);
     }
 
+    void CGuiUtility::centerWidget(QWidget *widget)
+    {
+        const QRect screenGeometry = QApplication::desktop()->screenGeometry();
+        const int x = (screenGeometry.width()  - widget->width())  / 2;
+        const int y = (screenGeometry.height() - widget->height()) / 2;
+        widget->move(x, y);
+    }
+
+    void CGuiUtility::centerWidget(QWidget *widget, QWidget *host)
+    {
+        if (!host) { host = widget->parentWidget(); }
+
+        if (host)
+        {
+            const QRect hostRect = host->geometry();
+            widget->move(hostRect.center() - widget->rect().center());
+        }
+        else
+        {
+            CGuiUtility::centerWidget(widget);
+        }
+    }
+
     QString CGuiUtility::metricsInfo()
     {
         static const QString s("%1 %2 %3 | 80 chars: w%4 h%5 | 43 chars: w%6 h%7");

src/blackgui/guiutility.h

@@ -218,6 +218,12 @@ namespace BlackGui
         //! Estimate size based on current font
         static QSizeF fontMetricsEstimateSize(int xCharacters, int yCharacters, bool withRatio = false);
 
+        //! Center widget to host or screen
+        static void centerWidget(QWidget *widget);
+
+        //! Center widget to screen
+        static void centerWidget(QWidget *widget, QWidget *host);
+
         //! Some info about font metrics
         static QString metricsInfo();
 

src/swiftlauncher/swiftlauncher.cpp

@@ -506,6 +506,7 @@ void CSwiftLauncher::startWizard()
         m_wizard.reset(new CConfigurationWizard(this));
     }
     m_wizard->show();
+    CGuiUtility::centerWidget(m_wizard.data(), this);
 }
 
 void CSwiftLauncher::onStyleSheetsChanged()