Merged

Backend.py

@@ -170,6 +170,7 @@ def ftpDownload(ftp, file, stream):
     #create tkinter window
     print("downloading file: "+file)
     dialog = CTk()
+    if os.name == 'posix':
         dialog.attributes('-type', 'dialog')
     dialog.title("Downloading Modpack")
     set_appearance_mode("dark")

Main.py

@@ -54,6 +54,7 @@ def main():
 
     # GUI for selecting Prism instance path
     app = CTk()
+    if os.name == 'posix':
         app.attributes('-type', 'dialog')
     app.geometry("1280x720")
     app.title("FamilyCraft Launcher")

Upload.py

@@ -84,6 +84,7 @@ def main():
     fileName = "modpack.mrpack"
 
     app = CTk()
+    if os.name == 'posix':
         app.attributes('-type', 'dialog')
     app.geometry('500x400')
     app.title("FamilyCraft Launcher Upload Utility")