We should suggest this as working with CustomTkinter

[BenjaminTGa]

I found that even when I used the Sun Valley theme on Tkinter, the output still lacked resolution and didn't look great.
So, my solution to this was to use a CustomTkinter canvas and place the Tkinter widgets that were styled with Sun Valley onto it. I now have some stunning looking GUIs.
I propose that on the Sun Valley GitHub readme file, we should mention it's compatible with CustomTkinter if you want higher DPI.

[rdbende]

Could you show a screenshot? I'm curious, how could CustomTkinter make this work with hi-res.

[sumeshir26]

Could you show a screenshot? I'm curious, how could CustomTkinter make this work with hi-res.

https://github.com/TomSchimansky/CustomTkinter/blob/09e584634c867f2b6074fcbfe41cba80d2b78c66/customtkinter/windows/widgets/core_rendering/draw_engine.py#L11

[rdbende]

This doesn't do anything with the ttk widgets.

[BenjaminTGa]

Sure! (Just ignore the menubar on top.)

You can't really see how great it looks, but that's because the components are so small.
Here's the code required:

import customtkinter
import tkinter
from tkinter import ttk
import sv_ttk

app = customtkinter.CTk()  # create CTk window like you do with the Tk window
button = ttk.Button(app, text="This is a Sun Valley button.")
edit = ttk.Entry(app)

button.grid(column=0, row=0)
edit.grid(column=1, row=0)

app.mainloop()

[HuyHung1408]

It's just as same as ctypes.windll.shcore.SetProcessDpiAwareness(True), which makes buttons and other widgets super small on high scailing.

Without ctypes.windll.shcore.SetProcessDpiAwareness(True), with the bad font rendering on 150% scaling: