Microsoft Windows XP, Vista, and 7 systems all use rounded corners, but in the Windows 8 era, Microsoft began to use flat and right-angle styles.
Therefore, in Windows 10, the main window and corner design are still at right angles, but Microsoft has decided to return to the previous era of rounded corners.
According to the clarification released by Microsoft engineers on Github, WinUI will bring rounded corners to top-level windows and application pop-up windows, that is, menu items.
But Microsoft will not force developers to follow in the company’s footsteps, which means that developers can continue to use direct-style borders if they wish.
The new style is actually based on Microsoft’s fluent design system, but the original very sharp frame is turned into small rounded corners, which will look more rounded.
Microsoft admits that the new styles currently under reconstruction are based on the Microsoft smooth design system, but Microsoft did not disclose when this rounded corner design style will come in full swing.
According to our guess, this change should come in the Windows 10 update released next fall, after all, the new version next spring is just a small update.
However, Microsoft may test this new style in the first half of next year, so Windows 10 users who use the Insider Preview version will be the first to experience the new style.