Native looking osx preference window?

[Jarrodsz]

basically i want to build a window like this.
I wondered if such an attempt was already made before diving into it.

[GroovinChip]

Hi @Jarrodsz. I apologize for the lateness of this reply.

As of now, this UI is mostly achievable; we have sliders, buttons, and menus. We do not yet have tabs like the ones in your screenshot.

More importantly, multi-window is not yet supported in the Flutter framework. There are third-party plugins that do it, but they achieve it through workarounds that prove to be problematic in most use-cases.