How to make beautiful windows in C#, simplify development and complicate compilation and reversing?

Question

reverse engineering

I have Visual Studio 2012 installed. I
started learning c#.
Is it possible to create window applications in Sharp so that their design is in the form of html or something similar.
Let me explain what it is for.
Firstly, it would be easier to develop a window with a bunch of menus, and secondly, it would be possible to push part of it onto the server.
And the code would be poorly decompiled.
I came across a program, everything is stored there in some kind of baml resources and you can decompile the program, but it is not possible to change something in it.
I think it has something to do with windows.

Answer 1

WPF

Answer 2

nodejs, electron