- infoviewer: add color-to-color gradient feature; THX to TangoCash ...

... for basic inspiration and dbt for some optimizations

src/gui/infoviewer.h

@@ -62,8 +62,6 @@ class CInfoViewer
 	int            InfoHeightY;
 	bool	       fileplay;
 
-	int            BoxStartX;
-	int            BoxStartY;
 	int            ButtonWidth;
 
         // dimensions of radiotext window
@@ -108,6 +106,7 @@ class CInfoViewer
 	uint32_t lcdUpdateTimer;
 
 	void paintBackground(int col_Numbox);
+	void paintHead();
 	void show_Data( bool calledFromEvent = false );
 	void display_Info(const char *current, const char *next, bool UTF8 = true,
 			  bool starttimes = true, const int pb_pos = -1,
@@ -145,6 +144,8 @@ class CInfoViewer
 	char     aspectRatio;
 	uint32_t sec_timer_id;
 
+	int	BoxStartX;
+	int	BoxStartY;
 	int      BoxEndX;
 	int      BoxEndY;
 	int      ChanInfoX;