The OnePlus Ace 6 Ultra will be unveiled on April 28 (that’s Tuesday next week). Last week, the company posted details on the Ace Awakening design, which features the word “Ace” etched on the back of the device in a way that creates a 3D effect.Now OnePlus has revealed another look for the Ace 6 Ultra called “Metal Storm”. It’s a combination of a metal frame with a matte finish and a glass back panel with a “silk” texture. This texture is created by etching a nanoscale pattern that is soft to the touch but glitters in the light. The company says that it will shoo away...