wip: dark/light mode adaptation

src/qt/qtclasses.h

@@ -22,6 +22,12 @@ enum CustomQEvent {
 	EndpointRoleChange     = 1007
 };
 
+class DarkModeEventFilter : public QAbstractNativeEventFilter {
+	
+public:
+    bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *) override;
+};
+
 template <typename T>
 class CustomWidgetEvent : public QEvent {
 		
@@ -31,10 +37,6 @@ public:
 };	
 //Q_DECLARE_METATYPE(EndpointWidgetEvent)
 
-
-//todo: TEST. TEST.
-//#include "qtvisuals.h"
-
 class ExtendedCheckBox : public QCheckBox {
 	Q_OBJECT
 protected:
@@ -47,7 +49,6 @@ public:
 	//B(int x) : A(x) { }
 };
 
-
 class SessionWidget : public QWidget {
 Q_OBJECT