Sublime Text is a very popular text editor, and for a while now it's had marginal D support. What has changed recently is updated syntax highlighting to support all the new keywords that have come in the last couple of years and UDAs
Great news!
Recently, I worked a little on adding rudimentary dfmt support (like clang-format) to Sublime:
https://github.com/Hackerpilot/dfmt/pull/202
