There was something almost poignant in the Twitter thread last week from one of the original designers of the site’s blue bird logo, soon to be extinct. Martin Grasser recalled how, in 2012, Twitter founder Jack Dorsey had commissioned him, in terms familiar to creatives everywhere: “There was essentially no brief,” Grasser suggested, “other than ‘we want a new bird, and it should be as good as the Apple and Nike logo’. Twitter had made some sort of flying goose – but Jack wanted something simpler.” Grasser went away and started sketching different real birds, watching them in flight, listening…