reimplementaion of fix for QColorDialog on macOS Sierra bug.

doesn't use destructor because destructor causes another crash.

YACReaderLibrary/options_dialog.h

@@ -0,0 +1,39 @@
+#ifndef __OPTIONS_DIALOG_H
+#define __OPTIONS_DIALOG_H
+
+#include <QtWidgets>
+
+#include "yacreader_options_dialog.h"
+
+#include "yacreader_global.h"
+
+using namespace YACReader;
+
+class OptionsDialog : public YACReaderOptionsDialog
+{
+Q_OBJECT
+	public:
+		OptionsDialog(QWidget * parent = 0);
+
+    public slots:
+        void editApiKey();
+        void restoreOptions(QSettings * settings);
+
+    private slots:
+        void useBackgroundImageCheckClicked(bool checked);
+        void backgroundImageOpacitySliderChanged(int value);
+        void backgroundImageBlurRadiusSliderChanged(int value);
+        void useCurrentComicCoverCheckClicked(bool checked);
+        void resetToDefaults();
+    private:
+        QCheckBox * useBackgroundImageCheck;
+        QCheckBox * useCurrentComicCoverCheck;
+        QSlider * backgroundImageOpacitySlider;
+        QSlider * backgroundImageBlurRadiusSlider;
+        QLabel * opacityLabel;
+        QLabel * blurLabel;
+        QPushButton * resetButton;
+};
+
+
+#endif