Working on txt2tags files within Geany (0.19 4805svn / Fedora 12 x86_64) I found out that numbered titles <http://txt2tags.sourceforge.net/userguide/TitleNumberedTitle.html#6_2> are not shown in the Symbols panel.
Sample txt2tags file with (un)numbered titles
I reclassified this as feature request as this is rather a missing feature than a real bug.
Anyway, now implemented in SVN together with stripping of the equal resp. plus signs in title tags.
ok, but now there is a little clash with the numbered lists, which are written with a leading +
The tagmanager could check is such a symbol is followed by a closing one on the same line, and if not, it shouldn't add the line in the symbols panels.