System-wide dark mode not respected in various apps

I recently bought a new system and have installed Manjaro XFCE on it.

My issue is that previously on the old PC, I was using the Matcha Sea Dark theme and apps that had the “System” or “Device” setting for colours/dark mode would correctly respect that and set the colour scheme to dark.

However, on this fresh installation, Chromium-based apps and their webpages (e.g. Google search results) don’t seem to realise that I have a “dark theme” enabled even though the appropriate “use system” preference is enabled

Does anyone know what might be going on here? Firefox seems to work fine for this.


Chromium does not respect the system theme while Firefox does.