Version 0.2 of XEP-0331 (Data Forms - Color Field Types) has been released.
Abstract: This specification defines how to publish fields in data forms that take color values. Color values are best edited using a color picker dialog, rather than manual input. Changelog: [See revision history] (pw) Diff: http://xmpp.org/extensions/diff/api/xep/0331/diff/0.1/vs/0.2 URL: http://xmpp.org/extensions/xep-0331.html
