Create a logo for a SoundDeck app. The logo should be the letters SD, divided into four sections, with each section a bright color. The logo must be visible in both large and small sizes, as it will later be used as an icon. Make the letter outlines bold or black, perhaps with a highlight. Do not include the app name, SoundDeck. Use a black background. The background frame should have rounded corners, with a Liquid Glass effect similar to Apple's, and white on the outside. Mehr sehen