In the video, they're spending the first 20 seconds filing down the corners of the logo, having a big reveal of the blue Windows logo with rounded corners. This leads into the rest of the feature reveal, all round things now. But in the "end credits", the same blue Windows logo is back to its sharp cornered self again. Is this a subtle hint to the UI inconsistencies that are still to be expected after the major version bump, or is there another meaning?