So, I was just trying to match my Atom config with my ST3's and one of those things I really like to have in my text editor is an option to display invisible characters.
FYI in Atom, this is controlled by the "Show Invisibles" checkbox in the Editor Settings (or editor:showInvisibles in your config.cson). I had no problem to find this setting at all. My problem was that the invisible characters are too damn bright by default.
But thanks to the Developer Tools, it didn't took me long to find what I was looking for...
And thanks to Atom's styles.less, all I had to do to resolve my problem was to add 3 lines of CSS and hit ⌘S:
How I felt after that? I felt awesome. I had only installed Atom minutes ago.
I didn't even had to think to fix my problem. All the knowledge I needed was already in my head! It was simple as editing a webpage.
TL;DR: Atom allowed me to fix one simple problem – that I still encounter in most text editors nowadays – in seconds.
What about yours?