when I look at the code:
// If debug isn"t set in LS, and we"re in Electron, try to load $DEBUG
  if (!r && typeof process !== "undefined" && "env" in process) {
    r = process.env.DEBUG;
  }how do you understand this sentence?
If debug isn"t set in LS, and we"re in Electron what is  LS  and what is Electron? 
