Setting `ButtonStyle.text_style` displays grey screen

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• [X] I have searched the opened issues and there are no duplicates

Describe the bug

I'm using the control 'TextButton' and would like to customize its text. In 'style' property of 'TextButton', I'm using the class 'ButtonStyle'.

When I use TextStyle as value for 'style' (that is a property of 'ButtonStyle'), it displays a grey page. You can see it in the pictures attached.

Code sample

Code

import flet as ft

def main(page: ft.Page):
       
    btn = ft.TextButton(
        text='Text Button 1',
        style=ft.ButtonStyle(
            color=ft.colors.GREEN,
            text_style=ft.TextStyle(
                size=10
            )
        )
    )

    page.add(btn)

ft.app(target=main)

To reproduce

Just run the code.

Expected behavior

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Screenshots / Videos

Captures

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Operating System

Windows

Operating system details

Windows 11 Pro

Flet version

0.24.1

Regression

No, it isn't

Suggestions

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Additional details

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