This is what makes Tukui the #1 choice if you want to build your own custom UI. For users with some existing Lua knowledge the UI is designed as a simple base system to be then customized from the ground up. The UI is built from such a minimal base and is broken up into a modular file structure that it makes it fairly easy for beginners to jump right in and start editing. Tukui may be the better choice if you want to learn a few things about Lua. Tukui will appeal to users who wish to start with a bare bone minimal UI in a total different look than what blizzard give us, but then want to add one feature at a time until their UI is tweaked to their desire. Tukui is just the default Blizzard UI with a completely redesigned look, everything from the Blizzard UI is built into Tukui. Unlike Elvui however, Tukui does not come with any extra features that Blizzard doesn't offer (An example would be the classtimers option in Elvui). Like Elvui, most things from Tukui are configured automatically and the UI as a whole will work straight out of the box. One of the main difference between Tukui and Elvui is that Tukui is designed around Blizzard default UI, whereas Elvui goes along the same premise but with a lot of extra features already built in (take the GUI for an example).

Tukui wow 4.0.6