Hi,
First, thanks for this really great software.
I just install it on Debian Jessie to write txt2tags files, but the syntax coloration is missing three rules:
``monospaced``
(see http://txt2tags.org/userguide/Monospaced.html#6_7)
``` verbatim line
(see http://txt2tags.org/userguide/VerbatimLineVerbatimArea.html#6_8)
```
verbatim area
```
(see again http://txt2tags.org/userguide/VerbatimLineVerbatimArea.html#6_8)
Maybe this is linked to http://sourceforge.net/p/geany/bugs/868/.
Also, but this might go in another bug report (feel free to tell me), the first level titles are only colorized on the left "+", contrary to second and third level titles that are colorized on all the line (see the rule at http://txt2tags.org/userguide/TitleNumberedTitle.html#6_2).
Regards,
Yvan