[Bug] unknown color is back (sorry)

Author: ssSydVCreated Aug 3, 2026Updated Aug 3, 2026
LabelsBugDone - Install Dev Build (see docs for how)Port - TK

Type of Issue (Enhancement, Error, Bug, Question)

unknow color named 1234567890 is back with Version 6.3


Operating System

Windows 11

PySimpleGUI Port (tkinter, Qt, Wx, Web)

New install PSG this morning


Versions

NOTE - PSG4 is no longer supported

Please try Version 6 if you're running Version 4.

Version information can be obtained by calling sg.main_get_debug_data() Or you can print each version shown in ()

Python version (sg.sys.version)

PySimpleGUI Version (sg.__version__)

6.3

GUI Version (tkinter (sg.tclversion_detailed), PySide2, WxPython, Remi)


Your Experience In Months or Years (optional)

Years Python programming experience 23

Years Programming experience overall 32

Have used another Python GUI Framework? (tkinter, Qt, etc) (yes/no is fine) Reverting to Version 4 Worked

Anything else you think would be helpful?


Troubleshooting

These items may solve your problem. Please check those you've done by changing - [ ] to - [X]

  • Searched main docs for your problem PySimpleGUI Documenation
  • Looked for Demo Programs that are similar to your goal. It is recommend you use the Demo Browser! Demo Programs
  • None of your GUI code was generated by an AI algorithm like GPT
  • If not tkinter - looked for Demo Programs for specific port
  • For non tkinter - Looked at readme for your specific port if not PySimpleGUI (Qt, WX, Remi)
  • Run your program outside of your debugger (from a command line)
  • Searched through Issues (open and closed) to see if already reported Issues.PySimpleGUI.com
  • Upgraded to the latest release of PySimpleGUI on PyPI (Version 6)

Looks to be an issue from 2021 that was resolved, that has come back in Version 6

Detailed Description

Code To Duplicate

A short program that isolates and demonstrates the problem (Do not paste your massive program, but instead 10-20 lines that clearly show the problem)

This pre-formatted code block is all set for you to paste in your bit of code:

python

# Paste your code here

import os
import PySimpleGUI as sg


DEFAULT_PATH = r"~\Python_Projects\_ProjectData"
TARGET_PATH = os.path.expanduser("~")

# Trying Different Themes to see which one worked
sg.theme("DefaultNoMoreNagging")
# sg.theme("LightGray1")
# sg.theme("SystemDefault")

# Define the layout of the window
layout = [
    [sg.Text("Select a folder below:")],
    [
        sg.InputText(key="-FOLDER-", size=(40, 1)),
        sg.FolderBrowse("Browse", initial_folder=TARGET_PATH),
        sg.Button("Default")
    ],
    [sg.Button("Run"), sg.Button("Exit")],
]

# Create the window
window = sg.Window("Folder Selector", layout)

# Event loop to process user actions
while True:
    try:
        event, values = window.read()

        # Handle window closure or Exit button
        if event == sg.WIN_CLOSED or event == "Exit":
            break

        if event == "Default":
          window["-FOLDER-"].update(DEFAULT_PATH)
          selected_folder=DEFAULT_PATH

        # Handle Run button
        if event == "Run":
            selected_folder = values["-FOLDER-"]

        if selected_folder:
            sg.popup("Success", f"Running process on:\n{selected_folder}")
        else:
            sg.popup_error("Error", "Please select a folder first!")

    except Exception as e:
        print(f"An error occurred: {e}")
window.close()

Screenshot, Sketch, or Drawing


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