Win10 Redstone version of the new features

One of the new APIs is called RadialController, which is similar to the radial circular tool control used in the previous OneNote application, as shown below. This type of control is undoubtedly more suitable for stylus operation, it is displayed in a floating form, and the position that appears can be automatically adjusted according to the needs of use.
The other control is the Ink Toolbar, which makes it easy to choose colors and is suitable for drawing or annotation.
Surface Pens have always been standard accessories for Surface devices, and Microsoft's new API/controls allow developers to take full advantage of the stylus. Of course, we also hope that these new features will also be supported in Win10 Mobile, and the future of Surface Phone with stylus productivity will be upgraded to a higher level.