I have found this Dark Mode from the Function Repository. which is great.
Dark Mode at Function Repository But i want to customize a bit based on this, like font and colors. then also set it as my default. How to properly do it?Additionally, beyond this, how to nicely do modification on any resource functions and use it?
Version 14.3 (released yesterday) now has full native dark mode. This means that the app itself (the windows, dialogs, notebooks, palettes, etc.) all support dark mode throughout.
For more information, see the 14.3 release blog.