[Qgis-user] information stored in a project file (2.8)

[Larissa Junek]

Hello,
I had a look at my *.qgs-files and so far I understand that there is
information stored about
* Layers added
* Layer properties, icluding symbolisation and styles
* Projection for the map view
* Last viewed extend
* Print Composers
* Print Composer elements with settings
* Print Composer atlas settings
* Digitizing settings

Did I miss something essential? I want to insert the descriptions into
the QGIS user manual 2.8.

Thanks in advance.

Kind regards,
Larissa