[Cthulhu_]

Python actually, IIRC

[satysin]

Sublime Text (the editor) is written in C++. Python is used for the plugin API.

[criddell]

Do you know how they managed to have a consistent cross-platform UI?

[lobster_johnson]

Sublime has its own proprietary UI framework: https://news.ycombinator.com/item?id=2822114.

[criddell]

Thanks! I really would love to see a write up of that.