• l3color, which provides support for setting colors using a range of color models
• l3draw, a code-level interface for constructing drawings
• l3str, support for string manipulation;
• xcoffins, which allows the alignment of boxes using a series of ‘handle’ positions, supplementing the simple TeX reference point
• xgalley, which controls boxes receiving text for typesetting.

See also l3kernel l3packages.

The author is The LaTeX Team. The package is Copyright © 1998-2011, 2015-2018 The LaTeX3 Project.