Abstract: A method for drawing a line having a gradient opacity across a width of the line includes receiving a path for rendering the line in a user interface, and rendering, by a computing device, a plurality of composite lines on a user interface along the path to form the line. The composite lines of the plurality of composite lines have different widths have an opacity, and are multilayered along the path. The method further includes centering, by the computing device, longitudinal-centers of the plurality of composite lines with a center of the path. The opacity of the plurality of composite lines is additive across portions of the width of the line to form the gradient opacity.

Abstract: In embodiments of pen tool editing modes, drawing regions of a drawing application can be configured for image creation and editing. A pen tool of the drawing application can be configured for selection to both create an image for display and edit an image in a drawing region. Editing modes of the pen tool can be initiated based on pen tool inputs and without selection of a selection tool. A first pen tool editing mode may be initiated based on a pen tool input to create an image in a new drawing region. Alternatively, a second pen tool editing mode may be initiated based on a pen tool input to create an image in an existing drawing region. Alternatively, a third pen tool editing mode may be initiated based on a pen tool input as a selection of an image to edit the image.