Experimenting with the logo features as suggested
by Henning Hraban Ramm I discovered
that I can say:
\definelogo[Pagina][text][left][command={\framed{\blackrule}}, state=start]
or
\definelogo[Pagina][text][middle][command={\framed{\blackrule}}, state=start]
or
\definelogo[Pagina][text][right][command={\framed{\blackrule}}, state=start]
with the second key making the control of the alignment of the framed material.
How is possible to control the alignment if instead
of [text] I use [rightmargin] ?
I tried
\definelogo[Pagina][rightmargin][left][command={\framed{\blackrule}}, state=start]
and
\definelogo[Pagina][rightmargin][middle][command={\framed{\blackrule}}, state=start]
to no avail. Any hints?
Marcus Vinicius