Fix: Implement user's proposed gui.py changes and correct theme JSON files

custom_theme_dark.json

@@ -6,7 +6,8 @@
     "fg_color": ["#121212", "#121212"]
   },
   "CTkLabel": {
-    "text_color": ["#ecd7b2", "#ecd7b2"]
+    "text_color": ["#ecd7b2", "#ecd7b2"],
+    "fg_color": "transparent"
   },
   "CTkButton": {
     "fg_color": ["#21498a", "#21498a"],

custom_theme_light.json

@@ -6,7 +6,8 @@
     "fg_color": ["#ecd7b2", "#ecd7b2"]
   },
   "CTkLabel": {
-    "text_color": ["#000000", "#000000"]
+    "text_color": ["#000000", "#000000"],
+    "fg_color": "transparent"
   },
   "CTkButton": {
     "fg_color": ["#4077d1", "#4077d1"],

gui.py

@@ -15,8 +15,8 @@ class VideoConverterGUI:
         self.master = master
         master.title("Video Converter")
         # Set a default size to prevent the narrow window
-        # You can change the "widthxheight" here.
-        master.geometry("600x750")
+        # You can change the "widthxheight" and add "+x+y" for position.
+        master.geometry("600x750+100+100")
 
         # --- Set Dark Mode by Default ---
         customtkinter.set_appearance_mode("Dark")  # Modes: "System", "Dark", "Light"