Cannot Bind TKinter Program to App Launcher Kali Linux

I've created a tkinter program that plays mp3 files, is there a way to turn that into an app without going through the whole gnome-builder/meson fiasco?

I'm using kali linux with xfce4 desktop

I've tried desktop-file-validate and desktop-file-install, but they don't work.

I've also tried adding StartupWMClass=HyenaMP3", but xprop is giving WM_CLASS(STRING) = "xfce4-panel", "Xfce4-panel" when I try it on the panel tkinter symbol.

Simple Code:

# I can post the full code if needed, but here's a simple tkinter code that would work for me

from tkinter import Tk

root = Tk()
root.mainloop()