XF 2.2 Style switcer

[Ricsca]

I found this tutorial to change light and dark style, but it doesn't work anymore.

Does anyone know how I can do?

Thank you

Unmaintained - Dark mode / Light Mode switcher button

This Template modification will add a button to NavGroup (before Search Button) to let users switching between the Light style and the Dark style. 1. Create a new Template Modification: Template: PAGE_CONTAINER Key...

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[TPerry]

found this tutorial to change light and dark style, but it doesn't work anymore.

Are you using a custom style or default style. If custom, then best to ask in that support thread as many style developers make some template changes that may be interfering.
Simplest solution.. purchase a paid style (like from PixelExit) that has it built in and then simply tweak that style.