Need Light theme when using flatpak

[Stav88]

Is your feature request related to a problem? Please describe.
When using outside during a sunny day, dark theme make the application very difficulte to read.

Describe the solution you'd like
Need a light theme in flatpak container. It Could be QT Fusion theme

Describe alternatives you've considered
When runing directly from python, it is possible to configure System theme from preferences window :
But when using flatpak build, the Fusion theme is not installed in the container and there is no other theme usable :
(Sorry, I fogot that I have done a POC by adding some code to have system style in preferences window)

When runing directly from python, it is possible to configure System theme in lisp.json file :

"theme": {
  "theme": "Fusion",
  "icons": "Numix"
 }

But when using flatpak build, the Fusion theme is not installed in the container and there is seems that there is no other theme usable

Systèmes :

• Ubuntu 24.04 (amd64) sous Gnome
  • flatpak org.linuxshowplayer.LinuxShowPlayer 0.6.5
  • python launch from master branch, tag v0.6.5
• Xubuntu 24.04 (amd64) sous XFCE
  • flatpak org.linuxshowplayer.LinuxShowPlayer 0.6.5

[FrancescoCeruti]

There's only a "dark" theme in the codebase ... not sure where those two come from, did you add them?

[Stav88]

Sorry, I fogot that I have done a POC from several months by adding some code to have system style in preferences window.

You can see the code of this POC here : master...Stav88:linux-show-player:362-allow-system-theme

I need to test it in a flatpak container.

[Stav88]

I have made a PR to support system themes : #363