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fonts coloring
=Visuals=
There are a lot of helpers which make things visible in the PDF. Mostly they have a form of <tt>\show...</tt> commands.
==Layout==
==Fonts==
<cmd>replacemissingcharacters</cmd> will replace characters missing in the font(s) with squares respecting font switches (<tt>\it</tt>, <tt>\bf</tt>). Underneath the squares are wanted characters, so though invisible, one can still search them (in searchable PDF editors) or copy them to the text editor to see the missing characters (in searchable PDF editors). ===Coloring=== ==Paragraph and page composition==
<cmd>showmakeup</cmd> shows how TeX composes text to paragraphs and paragraphs into pages. It inserts PDF layers in the output, which can be switched on/off. By default there are glue, hbox, kern, penalty and vbox layers. See <cmd>showmakeup</cmd> to see other options.
[[Category:Basics]]
[[Category:Tools]]
[[Category:ConTeXt]]
