diff --git a/CMakeLists.txt b/CMakeLists.txt
index aabf3ff72..8341c3085 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -248,7 +248,6 @@ endif(Qt5LinguistTools_FOUND)
 # Include additional directory paths.
 include_directories (
   ${CMAKE_CURRENT_SOURCE_DIR}/src
-  # ${CMAKE_CURRENT_SOURCE_DIR}/src/muparserx
   ${CMAKE_CURRENT_BINARY_DIR}
   ${CMAKE_CURRENT_BINARY_DIR}/src
   ${Qt5Xml_INCLUDE_DIRS}
diff --git a/resources/graphics/rssguard.png b/resources/graphics/rssguard.png
new file mode 100644
index 000000000..9619fee6e
Binary files /dev/null and b/resources/graphics/rssguard.png differ
diff --git a/src/core/settings.h b/src/core/settings.h
index 52243ab65..368ca013b 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -25,12 +25,12 @@ class Settings : public QSettings {
                   const QString &key,
                   const QVariant &value);
 
+    // Synchronises settings.
+    QSettings::Status checkSettings();
+
   protected:
     // Creates settings file in correct location.
     static QSettings::Status setupSettings();
-
-    // Synchronises settings.
-    QSettings::Status checkSettings();
 };
 
 #endif // SETTINGS_H
diff --git a/src/gui/formmain.ui b/src/gui/formmain.ui
index 7e92eecee..5d3e66432 100644
--- a/src/gui/formmain.ui
+++ b/src/gui/formmain.ui
@@ -81,8 +81,8 @@
     </property>
     <property name="iconSize">
      <size>
-      <width>16</width>
-      <height>16</height>
+      <width>20</width>
+      <height>20</height>
      </size>
     </property>
    </widget>
@@ -213,7 +213,7 @@
      <x>0</x>
      <y>0</y>
      <width>800</width>
-     <height>21</height>
+     <height>19</height>
     </rect>
    </property>
    <widget class="QMenu" name="m_menuFile">
diff --git a/src/gui/formsettings.cpp b/src/gui/formsettings.cpp
index 91976b666..6351af10e 100644
--- a/src/gui/formsettings.cpp
+++ b/src/gui/formsettings.cpp
@@ -1,10 +1,69 @@
 #include "gui/formsettings.h"
+#include "gui/themefactory.h"
+#include "core/settings.h"
 
 
 FormSettings::FormSettings(QWidget *parent) : QDialog(parent), m_ui(new Ui::FormSettings) {
   m_ui->setupUi(this);
+
+  // Set flags.
+  setWindowFlags(Qt::MSWindowsFixedSizeDialogHint | Qt::Dialog);
+
+  // Establish needed connections.
+  connect(this, &FormSettings::accepted, this, &FormSettings::saveSettings);
+
+  // Load all settings.
+  loadInterface();
 }
 
 FormSettings::~FormSettings() {
   delete m_ui;
 }
+
+void FormSettings::saveSettings() {
+  // Save all categories.
+  //saveGeneral();
+  saveInterface();
+  //saveLanguages();
+
+  // Make sure that settings is synced.
+  Settings::getInstance().checkSettings();
+}
+
+void FormSettings::loadInterface() {
+  QString current_theme = ThemeFactory::getCurrentIconTheme();
+#if defined(Q_OS_LINUX)
+  QString system_theme = ThemeFactory::getSystemIconTheme();
+#endif
+
+  foreach (QString icon_theme_name, ThemeFactory::getInstalledIconThemes()) {
+#if defined(Q_OS_LINUX)
+    if (icon_theme_name == system_theme) {
+      m_ui->m_cmbIconTheme->addItem(tr("system icon theme (default)"),
+                                    icon_theme_name);
+    }
+    else {
+#endif
+      m_ui->m_cmbIconTheme->addItem(icon_theme_name,
+                                    icon_theme_name);
+#if defined(Q_OS_LINUX)
+    }
+    if (current_theme == system_theme) {
+      // Because system icon theme lies at the index 0.
+      // See ThemeFactory::getInstalledIconThemes() for more info.
+      m_ui->m_cmbIconTheme->setCurrentIndex(0);
+    }
+    else {
+#endif
+      // TODO: Display correct theme on linux.
+      m_ui->m_cmbIconTheme->setCurrentText(current_theme);
+#if defined(Q_OS_LINUX)
+    }
+#endif
+  }
+}
+
+void FormSettings::saveInterface() {
+  // Save selected icon theme.
+  ThemeFactory::setCurrentIconTheme(m_ui->m_cmbIconTheme->itemData(m_ui->m_cmbIconTheme->currentIndex()).toString());
+}
diff --git a/src/gui/formsettings.h b/src/gui/formsettings.h
index 055bf5ee7..63131ab18 100644
--- a/src/gui/formsettings.h
+++ b/src/gui/formsettings.h
@@ -16,6 +16,14 @@ class FormSettings : public QDialog {
   public:
     explicit FormSettings(QWidget *parent = 0);
     ~FormSettings();
+
+  protected slots:
+    // Saves settings into global configuration.
+    void saveSettings();
+
+    // Load/save GUI settings.
+    void loadInterface();
+    void saveInterface();
     
   private:
     Ui::FormSettings *m_ui;
diff --git a/src/gui/themefactory.h b/src/gui/themefactory.h
index 12a66735d..f2c9ee793 100644
--- a/src/gui/themefactory.h
+++ b/src/gui/themefactory.h
@@ -9,6 +9,11 @@ class ThemeFactory {
     ThemeFactory();
 
   public:
+    enum Type {
+      SYSTEM,
+      USER
+    };
+
     // Adds custom application path to be search for icons.
     static void setupSearchPaths();