Works great with iconipy :)

[digidigital]

I created a small package that converts icon fonts to bitmaps during runtime.
This means:

• You do not have to separately ship button icons
• You can adjust the design of your icons in your code

I have created a small template GUI as well (code below)

More demo scripts for iconipy with ttkbootstrap
iconipy on pypi.org
iconipy documentation

Source for the vertical navbar GUI

#!/usr/bin/env python3
  
  import tkinter as tk
  import ttkbootstrap as ttk
  from ttkbootstrap.tooltip import ToolTip
  from iconipy import IconFactory
  
  def button_callback():
      print('Do something here')
  
  # Create the main window
  root = tk.Tk()
  root.geometry("800x600")
  root.title("Frames with Navigation and Grid Layout")
  
  # Apply the ttkbootstrap style
  style = ttk.Style(theme="cosmo")  # You can choose any theme you like
  
  # Adjust navbar appearance in this place
  nav_bootstyle='light' # can be 'info', 'primary', 'secondary', 'success', 'info', 'warning', 'danger', 'light', 'dark
  nav_font_color = 'lightgrey' if nav_bootstyle != 'light' else 'dimgrey'
  
  # Create tootips?
  create_tooltips=True
  
  # Define default attributes that are valid for all icons in a central place
  default_icon_size = 21
  
  # Initialize icon factory with desired settings
  create_nav_icon = IconFactory(icon_set = 'lucide', 
                          icon_size = default_icon_size,  
                          font_color = nav_font_color
                          )
  
  #### Configuration of your nav-buttons ###
  # [<icon name>, <tooltip text>, <command when clicked>]
  # Set the second value to '' or None if you don't need (or like) tooltips
  # In the boilerplate each button triggers the same function button_callback
  
  nav_buttons=[['file-plus-2', 'New file', button_callback],
               ['file-up', 'Open file', button_callback],
               ['save', 'Save file', button_callback],
               ['save-all', 'Save all files', button_callback],
               ['circle-user-round', 'Accounts', button_callback],
               ['settings', 'Settings', button_callback],
               ['info', 'About', button_callback],
  ]
  
  # Add icon image to config
  for button in nav_buttons:
      button.append(create_nav_icon.asTkPhotoImage(button[0]))
  
  # Create the frame for the nav bar
  frame1 = ttk.Frame(root, bootstyle=nav_bootstyle)
  frame1.grid(row=0, column=0, sticky="ns")
  
  # Add buttons to the nav bar (frame1)
  for row in range(len(nav_buttons)):
      button_cfg = nav_buttons[row]
      
      nav_button = ttk.Button(frame1, text="", image=button_cfg[3], command=button_cfg[2], bootstyle=nav_bootstyle) # Create button with icon
      
      if button_cfg[1] and create_tooltips: # Add tooltip
          ToolTip(nav_button, text=button_cfg[1], delay=0)
      
      # Add button to grid-layout of frame1, padding of 1 prevents tooltip from getting stuck
      nav_button.grid(row=row, column=0, padx=1, pady=1)  
  
  
  # Create the second frame
  frame2 = ttk.Frame(root, padding="10")
  frame2.grid(row=0, column=1, sticky="nsew")
  
  
  ####### Add your GUI-elements in frame2 here #########
  
  # Create a Notebook (tab view) in the second frame
  notebook = ttk.Notebook(frame2)
  notebook.grid(row=0, column=0, sticky="nsew")
  
  # Create three tabs
  tab1 = ttk.Frame(notebook)
  tab2 = ttk.Frame(notebook)
  
  notebook.add(tab1, text="Tab 1")
  notebook.add(tab2, text="Tab 2")
  
  # Add input forms to each tab
  for tab in (tab1, tab2):
      label = ttk.Label(tab, text="Input:")
      label.grid(row=0, column=0, padx=5, pady=5, sticky="w")
      
      entry = ttk.Entry(tab)
      entry.grid(row=0, column=1, padx=5, pady=5, sticky="w")
  
  # Configure the grid to expand properly
  root.columnconfigure(1, weight=1)
  root.rowconfigure(0, weight=1)
  frame2.columnconfigure(0, weight=1)
  frame2.rowconfigure(0, weight=1)
  
  ##################################################
  
  # Start the main event loop
  root.mainloop()