Enable marker for the current day in the calendar

Main.go

@@ -32,6 +32,7 @@ var (
 var (
 	wall       tcell.Screen
 	defStyle   tcell.Style
+	todayStyle tcell.Style
 	selStyle   tcell.Style
 )
 
@@ -99,7 +100,9 @@ func drawMonth(m time.Month, x, y int) {
 	for i := 1; i <= dayNum; i++ {
 		weekday := int(date(selTime.Year(), m, i).Weekday())
 		style := defStyle
-		if selTime.Day() == i && selTime.Month() == m {
+		if today.Day() == i && today.Month() == m {
+			style = todayStyle
+		} else if selTime.Day() == i && selTime.Month() == m {
 			style = selStyle
 		}
 		centeredText(
@@ -153,6 +156,7 @@ func main() {
 		log.Fatalf("%+v", err)
 	}
 	defStyle = tcell.StyleDefault.Background(tcell.ColorReset).Foreground(tcell.ColorReset)
+	todayStyle = tcell.StyleDefault.Background(tcell.ColorReset).Foreground(tcell.GetColor("blue")).Bold(true).Reverse(true)
 	selStyle = tcell.StyleDefault.Background(tcell.ColorReset).Foreground(tcell.GetColor("green")).Bold(true)
 
 	wall.SetStyle(defStyle)