For coloring.
Application program can load UWP’s InkCanvas’s file.

Handle keys.

VirtualKey.T:
VirtualKey.Y:
VirtualKey.U:
VirtualKey.R:
VirtualKey.B:
VirtualKey.N:
VirtualKey.M:
VirtualKey.V:
VirtualKey.Q:

VirtualKey.GamepadDPadLeft:
VirtualKey.GamepadDPadUp:
VirtualKey.GamepadDPadRight:
VirtualKey.GamepadDPadDown:
VirtualKey.GamepadX:
VirtualKey.GamepadY:
VirtualKey.GamepadB:
VirtualKey.GamepadA:
VirtualKey.GamepadView:
VirtualKey.GamepadMenu: