The filterUnits attribute defines the coordinate system for the attributes x, y, width and height.

The ideographic attribute indicates the alignment coordinate for glyphs to achieve ideographic baseline alignment for horizontally oriented glyph layouts. The value is an offset in the font coordinate system.

The lengthAdjust attribute controls how the text is stretched into the length defined by the textLength attribute.

The fx attribute defines the x-axis coordinate of the focal point for a radial gradient.

The k2 attribute defines one of the values to be used within the arithmetic operation of the <feComposite> filter primitive.

The glyph-name attribute specifies the name of a glyph.

The stroke-width attribute is a presentation attribute defining the width of the stroke to be applied to the shape. It applies to any SVG shape or text-content element (see stroke-width for a full list), but as an inherited property, it may be applied to elements such as <g> and still have the intended effect on descendant elements' strokes.

The rotate attribute specifies how the animated element rotates as it travels along a path specified in an <animateMotion> element.

The pointsAtX attribute represents the x location in the coordinate system established by attribute primitiveUnits on the <filter> element of the point at which the light source is pointing.

The mode attribute defines the blending mode on the <feBlend> filter primitive.