The <feConvolveMatrix> SVG filter primitive applies a matrix convolution filter effect. A convolution combines pixels in the input image with neighboring pixels to produce a resulting image. A wide variety of imaging operations can be achieved through convolutions, including blurring, edge detection, sharpening, embossing and beveling.

The <animate> SVG element provides a way to animate an attribute of an element over time.

The g2 attribute specifies a list of glyph names which identify a set of possible second glyphs in the kerning pair.

The glyph-orientation-vertical attribute affects the amount that the current text position advances as each glyph is rendered.

The pointer-events attribute is a presentation attribute that allows defining whether or when an element may be the target of a mouse event.

The marker-mid attribute defines the arrowhead or polymarker that will be drawn at all interior vertices of the given shape.

The origin attribute specifies the origin of motion for an animation. It has no effect in SVG.

The seed attribute represents the starting number for the pseudo random number generator of the <feTurbulence> filter primitive.

The overflow attribute sets what to do when an element's content is too big to fit in its block formatting context. This feature is not widely implemented yet.

The stroke attribute is a presentation attribute defining the color (or any SVG paint servers like gradients or patterns) used to paint the outline of the shape.