How can I change the theme globally and using native code?

[Horbin-Magician]

I want to implement a theme toggle feature.

I have read: #5213
But it only work in that window, the other windows remain the same theme.
Since Palette is a Global Singleton, I think this is a issue.

Also, I would like to ask for help. Is there any way to change the theme globally and switch the theme using native code (Rust)?

[ogoffart]

currently, global are global per instances.
As you've noticed, they are not shared.

So you'll have to make a function in native code that loop over all your window to then call a function in them to change the Palette.color-scheme

[Horbin-Magician]

Thank you for your reply.

[PanCakeConnaisseur]

...then call a function in them to change the Palette.color-scheme

@ogoffart , how exactly would that work? I want to set dark mode for the primary window. AFAIK, I can invoke callbacks from Rust code, but I cannot invoke functions and only functions have a body where I could do Palette.color-scheme = ColorScheme.dark. What am I missing?

[ogoffart]

You can invoke public functions from native code with invoke_

[PanCakeConnaisseur]

I must have missed that. Reading the documentation I got the wrong impression. Thanks for the clarification, Olivier.