How to have FastFlix use configured qt5 theme?

I have all installed QT applications successfully using the same theme except FastFlix.

I found the Theme settings and selected "system." FastFlix does use a QT theme. I think it may be the Adwaita light variant but not positive.

Any guidance on having FastFlix use the system theme?

FastFlix 4.10 from FastFlix_4.10.0_ubuntu_20_x86_64.zip.


Example of another qt application.


```
$ cat /etc/debian_version
11.5
$ uname -rom
5.10.104-antix.1-amd64-smp x86_64 GNU/Linux
$ set |grep QT_QPA
QT_QPA_PLATFORMTHEME=qt5ct
```

~/.config/qt5ct/qt5ct.conf
[Appearance]
color_scheme_path=/usr/share/qt5ct/colors/darker.conf
custom_palette=false
icon_theme=Nordzy-dark
standard_dialogs=default
style=kvantum-dark

[Fonts]
fixed=@Variant(\0\0\0@\0\0\0\x1e\0S\0o\0u\0r\0\x63\0\x65\0 \0\x43\0o\0\x64\0\x65\0 \0P\0r\0o@(\0\0\0\0\0\0\xff\xff\xff\xff\x5\x1\0\x32\x10)
general=@Variant(\0\0\0@\0\0\0\x1a\0S\0o\0u\0r\0\x63\0\x65\0 \0S\0\x61\0n\0s\0 \0\x33@(\0\0\0\0\0\0\xff\xff\xff\xff\x5\x1\0\x32\x10)

[Interface]
activate_item_on_single_click=1
buttonbox_layout=0
cursor_flash_time=1000
dialog_buttons_have_icons=1
double_click_interval=400
gui_effects=@Invalid()
keyboard_scheme=2
menus_have_icons=true
show_shortcuts_in_context_menus=true
stylesheets=@Invalid()
toolbutton_style=4
underline_shortcut=1
wheel_scroll_lines=3

[SettingsWindow]
geometry=@ByteArray(\x1\xd9\xd0\xcb\0\x3\0\0\0\0\x3\x8a\0\0\x1\x1\0\0\x6t\0\0\x4\xbe\0\0\x3\x90\0\0\x1\a\0\0\x6n\0\0\x4\xb8\0\0\0\0\0\0\0\0\n\0\0\0\x3\x90\0\0\x1\a\0\0\x6n\0\0\x4\xb8)

~/.config/kvantum/kvantum.kvconfig
[General]
theme=Nordic