What operating system are you using?
I've been using Linux distributions since the end of 2012. I use different *nix systems on my various machines:
- Ubuntu 17.10, Unity desktop on my notebook
- Ubuntu Server 16.04, openbox on my desktop machine
- Ubuntu Mate 16.04 on my Raspberry Pi 2, and
- macOS on my MacBook
ElementaryOS is another Linux distribution (Ubuntu-based) that I like and have used in the past.
Your favorite text editor?
I spend a lot of time in terminal, and that's why I like VIM.
If you're on Ubuntu (or one of its derivatives), just do a sudo apt-get install vim
and you'll have it.
That window is gorgeous – What theme do you use?
As GTK theme I use Flattiance, a fork of the Ambiance theme (the default Ubuntu theme).
As terminal emulator, I use gnome-terminal, themed with the flat terminal theme.