diff --git a/dislocker_client.py b/dislocker_client.py
index eb81ecf..d538189 100644
--- a/dislocker_client.py
+++ b/dislocker_client.py
@@ -50,7 +50,10 @@ if not os.path.isfile(client_config_path):
         },
         "pc_uuid": "",
         "pc_token": "",
-        "hard_lock": False
+        "hard_lock": False,
+        "cover_image": "dislocker",
+        "language": "ja",
+        "language_file": "lang.json"
     }
 
 elif os.path.isfile(client_config_path):
@@ -110,7 +113,7 @@ def master_password_gen():
     result = {"password": password, "password_hash": password_hash}
     return result
 
-def init(**kwargs):
+def init(**kwargs):        
     task_exist = subprocess.run('tasklist /fi "IMAGENAME eq dislocker_client.exe"', startupinfo=sp_startupinfo, stdout=subprocess.PIPE, text=True)
     if 'dislocker_client.exe' in task_exist.stdout:
         task_count = task_exist.stdout.count("dislocker_client.exe")
@@ -280,7 +283,7 @@ class Lock(customtkinter.CTkToplevel):
         self.textbox_font = customtkinter.CTkFont(family="meiryo", size=14)
         self.button_font = customtkinter.CTkFont(family="meiryo", size=14)
 
-        self.cover_img = customtkinter.CTkImage(light_image=Image.open(resource_path + '\\cover\\dislocker_light.png'), dark_image=Image.open(resource_path + '\\cover\\dislocker_dark.png'), size=(160, 320))
+        self.cover_img = customtkinter.CTkImage(light_image=Image.open(f'{resource_path}\\cover\\{client_config["cover_image"]}_light.png'), dark_image=Image.open(f'{resource_path}\\cover\\{client_config["cover_image"]}_dark.png'), size=(160, 320))
 
         self.grid_columnconfigure(0, weight=1)
         self.grid_columnconfigure(1, weight=6)