`Dropdown` menu shows black background color on Android mobiles

[jvalle63]

Description

Code example to reproduce the issue:

    status_search=ft.Dropdown(
        label='Status',
        width=150,
        color=ft.colors.GREY_700,
        bgcolor=ft.colors.WHITE,
        border_color=ft.colors.GREY_700,
        border_width=1,
        hint_text='  Status',
        hint_style=ft.TextStyle(size=12,color=ft.colors.GREY_700,weight="BOLD",font_family='Tahoma'),
        text_style=ft.TextStyle(size=12,color=ft.colors.GREY_700,font_family='Tahoma'),
        dense=True,
        filled=True,
        border_radius=1,
        content_padding=4,
        alignment=ft.alignment.center_left,
        options=[
            ft.dropdown.Option('Todos'),
            ft.dropdown.Option('Pendente'),
            ft.dropdown.Option('Andamento'),
            ft.dropdown.Option('Finalizado'),
        ],
        on_change=inputsearch,
        autofocus=True
        )
PS: Do not consider the input search option.
This does not affect reproduction of the issue

Describe the results you received:

The background color of the background window remains black, even when changing the background color, both in the dropdown options and when using Container .- Describe in text or paste a screenshot. -->

Describe the results you expected: I expected that the color of the background window would change when a set a specific color background in bgcolor option.

Additional information you deem important (e.g. issue happens only occasionally):

Flet version (pip show flet): Version 0.18.0

(paste your output here)

Give your requirements.txt file (don't pip freeze, instead give direct packages):

(The requirements)

Operating system: Android

Additional environment details: App executed on replit and flet app emulator