--- a/ui/mainwindow.cpp	Fri Jun 27 11:35:22 2014 +0200
+++ b/ui/mainwindow.cpp	Fri Jun 27 11:51:53 2014 +0200
@@ -461,38 +461,38 @@
     QToolButton *updatesButton = new QToolButton;
     updatesButton->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
     updatesButton->setIcon(QIcon(":/img/view-refresh.png"));
-    updatesButton->setIconSize(QSize(32, 32));
+    updatesButton->setIconSize(QSize(40, 40));
     updatesButton->setText(tr("Updates"));
     updatesButton->setFixedWidth(120);
-    updatesButton->setFixedHeight(75);
+    updatesButton->setFixedHeight(80);
     updatesButton->setCheckable(true);
     updatesButton->setChecked(true);
 
     QToolButton *allInstallButton = new QToolButton;
     allInstallButton->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
     allInstallButton->setIcon(QIcon(":/img/document-encrypt.png"));
-    allInstallButton->setIconSize(QSize(32, 32));
+    allInstallButton->setIconSize(QSize(40, 40));
     allInstallButton->setText(tr("Trusted\ncertificates"));
     allInstallButton->setFixedWidth(120);
-    allInstallButton->setFixedHeight(75);
+    allInstallButton->setFixedHeight(80);
     allInstallButton->setCheckable(true);
 
     QToolButton *allRemoveButton = new QToolButton;
     allRemoveButton->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
-    allRemoveButton->setIcon(QIcon(":/img/task-attempt.png"));
-    allRemoveButton->setIconSize(QSize(32, 32));
+    allRemoveButton->setIcon(QIcon(":/img/dialog-warning.png"));
+    allRemoveButton->setIconSize(QSize(40, 40));
     allRemoveButton->setText(tr("Revoked\ncertificates"));
     allRemoveButton->setFixedWidth(120);
-    allRemoveButton->setFixedHeight(75);
+    allRemoveButton->setFixedHeight(80);
     allRemoveButton->setCheckable(true);
 
     QToolButton *infoButton = new QToolButton;
     infoButton->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
     infoButton->setIcon(QIcon(":/img/dialog-information.png"));
-    infoButton->setIconSize(QSize(32, 32));
+    infoButton->setIconSize(QSize(40, 40));
     infoButton->setText(tr("Information\nand help"));
     infoButton->setFixedWidth(120);
-    infoButton->setFixedHeight(75);
+    infoButton->setFixedHeight(80);
     infoButton->setCheckable(true);
 
     mButtonGroup->addButton(updatesButton);
@@ -548,9 +548,9 @@
     updatesHeaderTextLayout->addWidget(updatesTip);
 
     QPushButton *searchUpdates = new QPushButton(tr("Check for updates"));
-    searchUpdates->setIcon(QIcon(":/img/system-search.png"));
+    searchUpdates->setIcon(QIcon(":/img/edit-find.png"));
     QPushButton *quitButton = new QPushButton(tr("Quit without saving"));
-    quitButton->setIcon(QIcon(":/img/system-shutdown.png"));
+    quitButton->setIcon(QIcon(":/img/application-exit.png"));
     QPushButton *installButton = new QPushButton(tr("Install updates"));
 #ifdef Q_OS_WIN
     if (is_admin()) {
@@ -558,7 +558,7 @@
         installButton->setIcon(uacShield);
     }
 #else
-    installButton->setIcon(QIcon(":/img/edit-redo.png"));
+    installButton->setIcon(QIcon(":/img/view-refresh.png"));
 #endif
     connect(quitButton, SIGNAL(clicked()), this, SLOT(closeApp()));
     connect(installButton, SIGNAL(clicked()), this, SLOT(checkAndInstallCerts()));