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

The attributeType attribute specifies the namespace in which the target attribute and its associated values are defined.

The logical AND (&&) (logical conjunction) operator for a set of boolean operands will be true if and only if all the operands are true. Otherwise it will be false.

The <polyline> SVG element is an SVG basic shape that creates straight lines connecting several points. Typically a polyline is used to create open shapes as the last point doesn't have to be connected to the first point. For closed shapes see the <polygon> element.

The left shift assignment (<<=) operator performs left shift on the two operands and assigns the result to the left operand.

The diffuseConstant attribute represents the kd value in the Phong lighting model. In SVG, this can be any non-negative number.

The static import declaration is used to import read-only live bindings which are exported by another module. The imported bindings are called live bindings because they are updated by the module that exported the binding, but cannot be re-assigned by the importing module.

The subtraction (-) operator subtracts the two operands, producing their difference.

The forEach() method of Array instances executes a provided function once for each array element.

The join() method of Array instances creates and returns a new string by concatenating all of the elements in this array, separated by commas or a specified separator string. If the array has only one item, then that item will be returned without using the separator.