How to customize theme in Sublime text 3?

Question

Sublime Text

Greetings.
Neosilator.
I am using Atom. Something else can be used if it looks like Atom.
Found a theme with the same syntax highlighting - https://github.com/IceTimux/one-dark-sublime-text-...
But how to fully use it?
How from this

spoiler

do this?

spoiler

Well, or examples on the github (there are no examples of settings there)

Answer 1

Try this theme