"I cannot tell you how much I miss the old Instagram or Slack icon." Greenberg explained how it worked: "Using progressive web apps, we made a way for you to save the OG icons from the web to your ...

Update 4 March 2019: Since the rebrand, Slack has updated its app icon again, changing the purple background, a core colour of the new identity, to white. Writing on Twitter, the Slack team has said ...