Q: Arduino IDE vs PlatformIO (atom)?

I vote for PlatformIO.

FUCK!

New PlatformIO Home Doesn't support Atom (Dark) Theme!

So on saturday I download vscode, I also installed the PlatformIO IDE so I can do esp8266 development. At this point I thought I had everything I needed. Later that day I was in a place where there is no internet. I started up vscode and went to create a new project using PlatformIO in vscode. It started having internet connection issues.

I am not used to my IDE interfaces needing network just to operate. Really dissappointing.

Does VSCode require internet to operate?