Changes

There's a whole lot of commands that help you analyzing and debugging your ConTeXt documents. Most of them start with <cmd>show...</cmd>:

<cmd>showlayout</cmd> : add four pages that show margins, layout sizes etc.

<cmd>showstruts</cmd> : make invisible characters visible

==[[Colors]] and Graphics==

<cmd>showexternalfigures</cmd> :

==Interaction==

<cmd>showfields</cmd> :