BUG: Non-sidebar "Application Preferences" window content is unreadable with dark colour scheme.

[RokeJulianLockhart]

Describe the bug

The preference window displays with incorrect (and ureadable, in my case) colouration. I presume that it is hard-coded.

How To Reproduce the bug

1. #!/usr/bin/env sh
   lookandfeeltool --apply 'org.kde.breezedark.desktop'
   	# [SE AskUbuntu](https://askubuntu.com/revisions/1183309/2#:~:text=lookandfeeltool%20%2D%2Dlist%20to%20get%20a,change%20to%20your%20desired%20theme.)

   Note, relevantly, the undermentioned (theme) overrides that I have set:

   1. #!/usr/bin/env sh
      flatpak override --show

   2. [Context]
      filesystems=xdg-config/gtk-3.0:ro;xdg-config/gtkrc-2.0:ro;xdg-config/gtk-4.0:ro;xdg-config/gtkrc:ro;

   However, this is standard for anyone utilizing anything except Adwaita (which basically means anyone not using GNOME).

2. #!/usr/bin/env sh
   flatpak install 'https://dl.flathub.org/repo/appstream/io.seamly.seamly2d.flatpakref'
   flatpak update  'app/io.seamly.seamly2d/x86_64/stable' --commit=2a9e282ff33761c34a85245e2d4572949cc4263be0b491d25c2268fb57d43545
   flatpak run     'app/io.seamly.seamly2d/x86_64/stable'

3. Select the entry labelled "File" in the toolbar.

4. Select the entry labelled "Application Preferences..." in the context menu.

What should have happened

It should render with the same colouration as the rest of the GUI.

Screenshots

What's your Desktop OS?

1. #!/usr/bin/env sh
   kinfo

2. Operating System: Fedora Linux 41
   KDE Plasma Version: 6.2.4
   KDE Frameworks Version: 6.8.0
   Qt Version: 6.8.0
   Kernel Version: 6.11.10-300.fc41.x86_64 (64-bit)
   Graphics Platform: Wayland
   Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
   Memory: 30.4 GiB of RAM
   Graphics Processor: AMD Radeon RX 5700

What's your Seamly version from Help/About?

Seamly2D version: Seamly2D 0.6.0.1
Build revision: Git:410a4bf83227
Build date: Built on Tue Dec 3 2024 at 06:01:50
Qt Version: 5.15.10
CPU: x86_64
Compiler: GCC 13.2.0 64 bit
CPU: x86_64
OS: Linux
OS Version: 5.15-23.08
Locale: en_GB
Country: United Kingdom
Language: English
Script Name: Latin
Decimal Point: .
Negative Sign: -
Positive Sign: +
Direction: Automatic
System Codec: UTF-8
Arguments: seamly2d

[csett86]

No, dark mode is simply not supported at the moment. I already tried workarounds, but our Qt base version (Qt 5.15) does not support it properly and our styling in the application as well...

[csett86]

And its fine to report the bugs here as we also publish the flatpak version, so keep all the bugs here in one place

[RokeJulianLockhart]

#1228 (comment)

@csett86, perhaps disable https://github.com/flathub/io.seamly.seamly2d/issues, then. Otherwise, you shall eventually have reports filed there.