UI icon cheat sheet for UWP viewer

Icon	Name	Description
	Rectangle	Add a rectangle
	Ellipse	Add an ellipse
	Polygon	Add a polygon
	Line	Add a line
	Arrow	Add an arrow
	Free text	Type on the document
	Note	Add a comment
	Ink	Draw on the document
	Eraser	Erase ink stroke
	Signature	Add a signature
	Image stamp	Add an image stamp
	Free highlighter	Highlight anything
	Underline	Underline text
	Squiggly	Add a squiggly annotation
	Strikeout	Strike out text
	Pan	Default pan tool