CTAN update: tcolorbox

[CTAN Announcements]

Thomas F. Sturm submitted an update to the

                tcolorbox

package.

Version number: 3.21
License type: lppl1.3

Summary description: Coloured boxes, for LaTeX examples and theorems,
etc.

Announcement text:
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- bug fix: empty key path handling inside the 'docKey' and 'docKey*'
  environments was faulty
- bug fix: wrong coloring for '\docAuxCommand' and '\docAuxCommand*'
- bug fix: draft mode for inner boxes deactivated in v3.20
- subtitles added
- new macros:
  '\tcbsubtitle'
- new options:
  'subtitle style', 'before skip', 'after skip', 'beforeafter',
- library 'documentation':
  implementation of handling macro and key names changed to accept
  underscores several internal implementation changes

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This package is located at 
   http://mirror.ctan.org/macros/latex/contrib/tcolorbox

More information is at
   http://www.ctan.org/pkg/tcolorbox

We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .

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   Thanks for the upload.

     For the CTAN Team
    Manfred Lotz