diff --git a/__pycache__/cls_mth_fc.cpython-312.pyc b/__pycache__/cls_mth_fc.cpython-312.pyc
index cad7fec..8c9b363 100644
Binary files a/__pycache__/cls_mth_fc.cpython-312.pyc and b/__pycache__/cls_mth_fc.cpython-312.pyc differ
diff --git a/cls_mth_fc.py b/cls_mth_fc.py
index a6ab225..cffc669 100755
--- a/cls_mth_fc.py
+++ b/cls_mth_fc.py
@@ -135,8 +135,7 @@ class LxTools(tk.Tk):
         """
         log_name: str = f"{Path.home()}"[6:]
         file: Path = Path.home() / "/tmp/.log_user"
-        with open(file, "w", encoding="utf-8") as f:
-            f.write(log_name)
+        Path(file).write_text(log_name, encoding="utf-8")
 
     @staticmethod
     def clean_files(folder_path: Path = None, file: Path = None) -> None:
@@ -156,13 +155,12 @@ class LxTools(tk.Tk):
         """
         method that writes in file whether tooltip is displayed or not
         """
-        with open(path, "r", encoding="utf-8") as set_f2:
-            lines2 = set_f2.readlines()
-            if "False\n" in lines2:
-                tip = False
-            else:
-                tip = True
-            return tip
+        lines = Path(path).read_text(encoding="utf-8")
+        if "False\n" in lines:
+            tip = False
+        else:
+            tip = True
+        return tip
 
     @staticmethod
     def msg_window(img_w: str, img_i: str, w_title: str, w_txt: str, txt2: Optional[str] = None,
diff --git a/wirepy.py b/wirepy.py
index b62cb6e..e442916 100755
--- a/wirepy.py
+++ b/wirepy.py
@@ -349,11 +349,9 @@ class FrameWidgets(ttk.Frame):
         """
         if self.tk.call("ttk::style", "theme", "use") == "water-dark":
             self.tk.call("set_theme", "light")
-            with open(set_file, "r", encoding="utf-8") as theme_set2:
-                lines3 = theme_set2.readlines()
-                lines3[3] = "light\n"
-            with open(set_file, "w", encoding="utf-8") as theme_set2:
-                theme_set2.writelines(lines3)
+            lines = Path(set_file).read_text(encoding="utf-8").splitlines(keepends=True)  # (keepends=True) = not changed
+            lines[3] = 'light\n' 
+            Path(set_file).write_text(''.join(lines), encoding="utf-8")
             self.color_label()
 
     def theme_change_dark(self):
@@ -362,33 +360,27 @@ class FrameWidgets(ttk.Frame):
         """
         if not self.tk.call("ttk::style", "theme", "use") == "water-dark":
             self.tk.call("set_theme", "dark")
-            with open(set_file, "r", encoding="utf-8") as theme_set2:
-                lines4 = theme_set2.readlines()
-                lines4[3] = "dark\n"
-            with open(set_file, "w", encoding="utf-8") as theme_set2:
-                theme_set2.writelines(lines4)
+            lines = Path(set_file).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[3] = 'dark\n' 
+            Path(set_file).write_text(''.join(lines), encoding="utf-8")
             self.color_label()
 
     @staticmethod
-    def update_setting(update_res):
+    def update_setting(update_res) -> None:
         """
         write off or on in file
         Args:
             update_res (int): argument that is passed contains 0 or 1
         """
         if update_res == 1:
-            with open(set_file, "r", encoding="utf-8") as set_f2:
-                lines2 = set_f2.readlines()
-                lines2[1] = "off\n"
-            with open(set_file, "w", encoding="utf-8") as set_f2:
-                set_f2.writelines(lines2) 
+            lines = Path(set_file).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[1] = 'off\n' 
+            Path(set_file).write_text(''.join(lines), encoding="utf-8")
 
         else:
-            with open(set_file, "r", encoding="utf-8") as set_f2:
-                lines2 = set_f2.readlines()
-                lines2[1] = "on\n"
-            with open(set_file, "w", encoding="utf-8") as set_f2:
-                set_f2.writelines(lines2)
+            lines = Path(set_file).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[1] = 'on\n' 
+            Path(set_file).write_text(''.join(lines), encoding="utf-8")
 
     @staticmethod
     def tooltip(tip) -> None:
@@ -398,20 +390,16 @@ class FrameWidgets(ttk.Frame):
             tip (bool): argument that is passed contains True or False
         """
         if tip:
-            with open(set_file, "r", encoding="utf-8") as set_f2:
-                lines2 = set_f2.readlines()
-                lines2[5] = "False\n"
-            with open(set_file, "w", encoding="utf-8") as set_f2:
-                set_f2.writelines(lines2)
+            lines = Path(set_file).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[5] = 'False\n' 
+            Path(set_file).write_text(''.join(lines), encoding="utf-8")
 
         else:
-            with open(set_file, "r", encoding="utf-8") as set_f2:
-                lines2 = set_f2.readlines()
-                lines2[5] = "True\n"
-            with open(set_file, "w", encoding="utf-8") as set_f2:
-                set_f2.writelines(lines2)
+            lines = Path(set_file).read_text(encoding="utf-8").splitlines(keepends=True)
+            lines[5] = 'True\n' 
+            Path(set_file).write_text(''.join(lines), encoding="utf-8")
 
-    def enable_check_box(self, _):
+    def enable_check_box(self, _) -> None:
         """
         checkbox for enable autostart Tunnel
         """
@@ -422,7 +410,7 @@ class FrameWidgets(ttk.Frame):
             self.lb_rename.delete(0, tk.END)
             self.btn_rename.config(state="normal")
                 
-    def delete(self):
+    def delete(self) -> None:
         """
         delete Wireguard Tunnel
         """
@@ -541,7 +529,7 @@ class FrameWidgets(ttk.Frame):
             except subprocess.CalledProcessError:
                 pass
 
-    def import_sl(self):
+    def import_sl(self) -> None:
         """
         Import Methode for Wireguard config Files.
         Before importing, it is checked whether PrivateKey and PublicKey are in the file.
@@ -671,7 +659,7 @@ class FrameWidgets(ttk.Frame):
             self.show_data()
             return data
 
-    def box_set(self):
+    def box_set(self) -> None:
         """
         This Method will display the autostarted label which
         Tunnel is automatically started regardless of the active tunnel.
@@ -705,7 +693,7 @@ class FrameWidgets(ttk.Frame):
 
         self.on_off()
 
-    def on_off(self):
+    def on_off(self) -> None:
         """
         Here it is checked whether the path to the file is there, if not, it is created.
         Set (on), the selected tunnel is displayed in the label.
@@ -732,7 +720,7 @@ class FrameWidgets(ttk.Frame):
         self.autoconnect.config(font=("Ubuntu", 11))
         self.autoconnect.grid(column=1, row=0, sticky="e", pady=19)
 
-    def init_and_report(self, data=None):
+    def init_and_report(self, data=None) -> None:
         """
         Displays the value address, DNS and peer in the labels
         or empty it again
@@ -755,7 +743,7 @@ class FrameWidgets(ttk.Frame):
         for field in fields:
             field.set("")
 
-    def show_data(self):
+    def show_data(self) -> None:
         """
         shows data in the label
         """
@@ -775,7 +763,7 @@ class FrameWidgets(ttk.Frame):
         self.endpoint.grid(column=0, row=8, sticky="w", padx=10, pady=20)
         self.endpoint.config(font=("Ubuntu", 9))
 
-    def stop(self):
+    def stop(self) -> None:
         """
         Stop Button
         """
@@ -785,7 +773,7 @@ class FrameWidgets(ttk.Frame):
 
         Tooltip(self.btn_stst, _("Click to stop selected Wireguard Tunnel"), tips)
 
-    def start(self):
+    def start(self) -> None:
         """
         Start Button
         """
@@ -799,7 +787,7 @@ class FrameWidgets(ttk.Frame):
         else:
             Tooltip(self.btn_stst, _("Click to start selected Wireguard Tunnel"), tips)
 
-    def color_label(self):
+    def color_label(self) -> None:
         """
         View activ Tunnel in the color green or yellow
         """