(ddd.info)Editing Themes

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7.3.5.3 Editing Themes
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Each theme can be globally activated or not.  If a theme is activated,
it is applied to all expressions that match its _pattern_.

   Normally, these patterns are automatically maintained by simply
selecting the themes for the individual displays.  However, you can also
edit patterns directly.

   Patterns are separated by `;' and contain shell-like metacharacters:
   * `*' matches any sequence of characters.

   * `?' matches any single character.

   * `[SET]' matches any character in SET.  Character ranges can be
     expressed using FROM-TO: `[0-9a-zA-Z_]' is the set of characters
     allowed in C characters.

   * `[!SET]' matches any character not in SET.

   * To suppress the special syntactic significance of any
     metacharacter\n\ and match the character exactly, precede it with
     `\' (backslash).

   * To suppress the syntactic significance of _all_ metacharacters,\n\
     enclose the pattern in double or single quotes.\n\

   To edit the set of themes, invoke `Data => Themes'.

   To apply changes you made to the themes, click on `Apply'.  To
revert the themes to the last saved, click on `Reset'.