(Image credit: Getty Images) Apple 's annual WWDC event is on the horizon, and with the tech titan keeping things mysterious as always, fans are doing all they can to find hints at what's in store. While unassuming at first, this year's logo has grabbed people's attention, as it supposedly 'reveals' a major clue about Apple's latest innovation. For a while, it seemed like Apple was beginning to stagnate, but its new Gen Z brand direction has given it a new lease of life filled with personality, playfulness and colour. Fans have already been theorising that Apple's adorable new mascot, Lil' Finder Guy , could be the next Siri, and with WWDC rumours predicting a major revamp for the new iOS 27, it seems fan theories could be right on the money. (Image credit: Apple) This year's WWDC logo looks pretty unassuming at first, but fans speculate that one detail offers a sneaky hint at Apple's new iOS innovation. It's all about the glow.…