The stroke-width attribute is a presentation attribute defining the width of the stroke to be applied to the shape.

A character class escape is an escape sequence that represents a set of characters.

The scale attribute defines the displacement scale factor to be used on a <feDisplacementMap> filter primitive. The amount is expressed in the coordinate system established by the primitiveUnits attribute on the <filter> element.

SVG supports the built-in XML xml:space attribute to handle whitespace characters inside elements. Child elements inside an element may also have an xml:space attribute that overrides the parent's one.

The zoomAndPan attribute specifies whether the SVG document can be magnified and panned.

The preserveAspectRatio attribute indicates how an element with a viewBox providing a given aspect ratio must fit into a viewport with a different aspect ratio.

The refY attribute defines the y coordinate of an element's reference point.

The with statement extends the scope chain for a statement.

The JavaScript error "unterminated string literal" occurs when there is an unterminated string literal somewhere. String literals must be enclosed by single (') or double (") quotes.

The xlink:show attribute indicates how a linked resource should be opened and is meant for XLink-aware processors. In case of a conflict, the target attribute has priority, since it can express a wider range of values.