Added: High DPI support for the Configuration Editor. Icons and proportions should look better now when DPI scaling is used.

Improved: Updated Qt to version 5.7
Fixed: The GUI for the Channel command was showing the wrong channels as selected when channel numbers were used instead of names.

Editor/CustomStyle.cpp

@@ -0,0 +1,39 @@
+/*
+    This file is part of EqualizerAPO, a system-wide equalizer.
+    Copyright (C) 2016  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#include "CustomStyle.h"
+#include "Editor/helpers/DPIHelper.h"
+
+CustomStyle::CustomStyle(QStyle* style)
+    : QProxyStyle(style)
+{
+}
+
+int CustomStyle::pixelMetric(QStyle::PixelMetric metric, const QStyleOption* option, const QWidget* widget) const
+{
+	switch (metric)
+	{
+	case PM_ToolBarIconSize:
+	case PM_TabBarIconSize:
+		return DPIHelper::scale(16);
+	case PM_DockWidgetTitleBarButtonMargin:
+		return DPIHelper::scale(baseStyle()->pixelMetric(metric, option, widget));
+	default:
+		return baseStyle()->pixelMetric(metric, option, widget);
+	}
+}