Improve layout, change color of B.Silk and improve schematic

frontend.sch

@@ -1465,4 +1465,52 @@ Wire Wire Line
 Connection ~ 5600 3900
 Wire Wire Line
 	5600 3900 5900 3900
+Wire Notes Line
+	5250 3950 5700 3950
+Wire Notes Line
+	5700 3950 5700 4300
+Wire Notes Line
+	5700 4300 5250 4300
+Wire Notes Line
+	5250 4300 5250 3950
+Wire Notes Line
+	3550 4100 4100 4100
+Wire Notes Line
+	4100 4100 4100 4500
+Wire Notes Line
+	4100 4500 3550 4500
+Wire Notes Line
+	3550 4500 3550 4100
+Wire Notes Line
+	3800 4000 2850 4000
+Wire Notes Line
+	2850 4000 2850 3400
+Wire Notes Line
+	2850 3400 3800 3400
+Wire Notes Line
+	3800 3400 3800 4000
+Wire Notes Line
+	1050 6150 1050 6500
+Wire Notes Line
+	1050 6500 1750 6500
+Wire Notes Line
+	1750 6500 1750 6150
+Wire Notes Line
+	1050 6150 1750 6150
+Wire Notes Line
+	2750 5450 2750 6150
+Wire Notes Line
+	2750 6150 3350 6150
+Wire Notes Line
+	3350 6150 3350 5450
+Wire Notes Line
+	3350 5450 2750 5450
+Wire Notes Line
+	4200 5100 4200 5400
+Wire Notes Line
+	4200 5400 4750 5400
+Wire Notes Line
+	4750 5400 4750 5100
+Wire Notes Line
+	4750 5100 4200 5100
 $EndSCHEMATC