align the rename field perfectly with the text field so that it is seemless and the user does not notice that there is a new field. Python 3.12 code: import tkinter as tk
from tkinter import simpledialog
from tksheet import Sheet
import json
from pathlib import Path
import ctypes

def set_dpi_awareness():
    """Enable DPI awareness to ensure high DPI settings are supported."""
    try:
        ctypes.windll.shcore.SetProcessDpiAwareness(1)
    except Exception as e:
        print(f"Error setting DPI awareness: {e}")

class TableApp:
    def __init__(self, root):
        """Initialize the Table Editor application."""
        self.root = root
        self.root.title("Table Editor with Sidebar")
        self.root.geometry("1280x720")

        self.sidebar = tk.Frame(root, width=200, bg='#F7F8FC', bd=0, relief='flat')
        self.sidebar.pack(expand=False, fill='y', side='left', anchor='nw')

        self.separator = tk.Frame(root, width=100, bg='white', bd=0, relief='flat')
        self.separator.pack(expand=False, fill='y', side='left', anchor='nw')

        self.main_frame = tk.Frame(root)
        self.main_frame.pack(expand=True, fill='both', side='right')

        self.header_frame = tk.Frame(self.main_frame, height=50, bg='white')
        self.header_frame.pack(fill='x')

        self.filter_label = tk.Label(self.header_frame, text="Filter:", bg='white', anchor="w")
        self.filter_label.pack(side='left', padx=5, pady=10)

        self.filter_entry = tk.Entry(self.header_frame)
        self.filter_entry.pack(side='left', padx=5, pady=10)
        self.filter_entry.bind("<KeyRelease>", lambda event: self.apply_filter())

        self.rename_headers_button = tk.Button(
            self.header_frame,
            text="Rename Headers",
            command=self.rename_headers,
            bg='white',
            relief='flat'
        )
        self.rename_headers_button.pack(side='left', padx=5, pady=10)

        self.table_frame = tk.Frame(self.main_frame, bg='white')
        self.table_frame.pack(expand=True, fill='both')

        self.new_table_button = tk.Button(
            self.sidebar,
            text="New Table",
            command=self.create_new_table,
            bg='#F7F8FC',
            borderwidth=0,
            highlightthickness=0,
            relief='flat'
        )
        self.new_table_button.pack(padx=10, pady=10, fill='x')

        self.table_buttons_frame = tk.Frame(self.sidebar, bg='#F7F8FC')
        self.table_buttons_frame.pack(expand=True, fill='both', padx=10, pady=10)

        self.save_file_dir = Path("tables")
        self.tables = {}
        self.table_buttons = {}  # Store button references
        self.original_data = {}
        self.headers = {}
        self.current_table_name = None
        self.rename_entry = None

        if not self.save_file_dir.exists():
            self.save_file_dir.mkdir()
        self.load_tables()

    def create_new_table(self):
        """Create a new table and add it to the available tables list."""
        table_name = f"Table {len(self.tables) + 1}"
        self.add_table(table_name)

    def add_table(self, table_name, data=None):
        """Add a table to the UI and internal storage."""
        default_data = [["" for _ in range(5)] for _ in range(10)]
        self.tables[table_name] = Sheet(
            self.table_frame,
            data=data if data else default_data
        )
        self.tables[table_name].enable_bindings()
        self.tables[table_name].extra_bindings([
            ("end_edit_cell", lambda event, table_name=table_name: self.save_data(table_name)),
        ])
        self.tables[table_name].pack_forget()
        self.original_data[table_name] = self.tables[table_name].get_sheet_data()
        self.headers[table_name] = self.tables[table_name].headers()

        table_button = tk.Button(
            self.table_buttons_frame,
            text=table_name,
            command=lambda name=table_name: self.load_selected_table(name),
            bg='#EAEDEF',
            relief='flat'
        )
        table_button.pack(fill='x', pady=2)
        table_button.bind("<Double-1>", lambda event, name=table_name: self.begin_rename(name))
        self.table_buttons[table_name] = table_button

    def load_tables(self):
        """Load existing tables from the directory."""
        for file_path in self.save_file_dir.glob("*.json"):
            table_name = file_path.stem
            with file_path.open('r') as file:
                data = json.load(file)
                headers = data.pop(0)
                self.add_table(table_name, data)
                self.headers[table_name] = headers

    def load_selected_table(self, table_name):
        """Display the selected table and hide others."""
        for name, sheet in self.tables.items():
            if name == table_name:
                sheet.pack(expand=True, fill='both')
                self.current_table_name = table_name
                sheet.headers(self.headers[table_name])
                self.apply_filter()
            else:
                sheet.pack_forget()

    def save_data(self, table_name):
        """Save current data of a table to a file."""
        data = [self.headers[table_name]] + self.tables[table_name].get_sheet_data()
        file_path = self.save_file_dir / f"{table_name}.json"
        with file_path.open('w') as file:
            json.dump(data, file)
        print(f"Data for {table_name} saved successfully.")

    def apply_filter(self):
        """Apply filtering based on the entered term."""
        if not self.current_table_name:
            return
        
        term = self.filter_entry.get().lower()
        original_data = self.original_data[self.current_table_name]

        filtered_data = [
            row for row in original_data if any(term in str(cell).lower() for cell in row)
        ]

        self.tables[self.current_table_name].set_sheet_data(filtered_data)

    def rename_headers(self):
        """Prompt user to rename headers of the currently selected table."""
        if not self.current_table_name:
            return

        current_headers = self.headers[self.current_table_name]
        new_headers = simpledialog.askstring(
            "Rename Headers",
            "Enter new headers (comma-separated):",
            initialvalue=", ".join(current_headers)
        )

        if new_headers:
            header_list = [header.strip() for header in new_headers.split(',')]
            self.headers[self.current_table_name] = header_list
            self.tables[self.current_table_name].headers(header_list)
            self.save_data(self.current_table_name)  # Automatically save the new headers

    def begin_rename(self, table_name):
        """Begin renaming of the table with a double click."""
        button = self.table_buttons[table_name]
        
        if self.rename_entry:
            self.rename_entry.destroy()

        # Create entry widget
        self.rename_entry = tk.Entry(
            self.sidebar,
            bg=button.cget("bg"),
            font=button.cget("font"),
            relief='flat',
            borderwidth=0,
            highlightthickness=0
        )
        self.rename_entry.insert(0, table_name)

        # Get button's geometry
        x = button.winfo_x()
        y = button.winfo_y()
        width = button.winfo_width()
        height = button.winfo_height()

        # Place entry at button's position
        self.rename_entry.place(x=x, y=y, width=width, height=height)
        self.rename_entry.focus()
        self.rename_entry.bind('<Return>', lambda _: self.end_rename(table_name))
        self.rename_entry.bind('<FocusOut>', lambda _: self.cancel_rename())

    def end_rename(self, old_name):
        """Finish the renaming process for the specified table."""
        new_name = self.rename_entry.get().strip()

        if new_name and new_name != old_name and new_name not in self.tables:
            self.tables[new_name] = self.tables.pop(old_name)
            self.original_data[new_name] = self.original_data.pop(old_name)
            self.headers[new_name] = self.headers.pop(old_name)

            # Update the button text
            self.table_buttons[new_name] = self.table_buttons.pop(old_name)
            self.table_buttons[new_name].config(text=new_name)

            # Update the file names
            current_file = self.save_file_dir / f"{old_name}.json"
            new_file = self.save_file_dir / f"{new_name}.json"

            if current_file.exists():
                current_file.rename(new_file)

        self.rename_entry.destroy()
        self.rename_entry = None

    def cancel_rename(self):
        """Cancel the renaming entry."""
        if self.rename_entry:
            self.rename_entry.destroy()
            self.rename_entry = None

if __name__ == "__main__":
    set_dpi_awareness()
    root = tk.Tk()
    app = TableApp(root)
    root.mainloop()