I've just installed ST3 on my High Sierra.
I wish to know how to enable icons for file types in my sidebar. I'will be using ReactJS, React-Native, Relay, etc. files.
Are those icons already included in ST3 ?
If not, what is the recommended icon package, where to grab it and how to install ?
You have to add the A File Icon package. The link is provided here: A File Icon
with full detailed instructions. In case you don't have the package control installed here is the link to install it: Package Control