added more strategies

lvl/lvl.go

@@ -22,23 +22,8 @@ func (l Level) String() string {
 		return "Error"
 	}
 	return "Undefined"
-
 }
 
-// Colorize colors a string for the shell matching to its level
-func (l Level) Colorize(str string) string {
-	var color string
-
-	switch l {
-	case Debug:
-		color = "\033[32m" // green
-	case Info:
-		color = "\033[97m" // white
-	case Warn:
-		color = "\033[33m" // yellow
-	case Error:
-		color = "\033[31m" //  red
-	}
-	return color + str + "\033[0m"
-
+func (l Level) MarshalJSON() ([]byte, error) {
+	return []byte("\"" + l.String() + "\""), nil
 }