             return _starSymbole
         }
         set (newValue) {
-            _starSymbole = newValue
+            if !newValue.isEmpty {
+                _starSymbole = newValue
+            }
         }
     }
     

            return _warningEmojiSymbole
        }
        set (newValue) {
            _warningEmojiSymbole = newValue
        }
    }
    

            return _watchEmojiSymbole
        }
        set (newValue) {
            if !newValue.isEmpty {
                _watchEmojiSymbole = newValue
            }
        }
    }
    
