trying to customize our university theme, I got stuck with the size of the navigation bullets (mini frame style), which are displayed as if scaled to 50% and the same with it's text.
Even though I can change the text size with
\setbeamerfont{headline}{size=\fontsize{9}{11}}
and the Sections/Subsections are displayed with a nice 9pt font, the bullets remain very small. I inserted the navigation with the following code:
\insertnavigation{\paperwidth}
to the header and use the helvet font – with no strange effect anywhere else though.
Can anybody tell me, how to increase the size of the bullets? Do I have to set the scale factor somewhere?
Best Answer
Looking at the definition of the
beamer
templatesmini frame
/mini frame in current subsection
inbeamerouterthemedefault.sty
(ll. 21-39), you'll see that the mini frames have a fixed size of 1mm. To change this according to your needs, these templates have to be redefined. This can be done using the following code:Input this code in the preamble of your document, i. e. between
\documentclass{beamer}
and\begin{document}
. It defines a new beamer length calledmini frame radius
which controls the size of the mini frames. The space that two mini frames are apart is set withmini frame size
(which is not a very suitable name, but it's introduced bybeamer
like this). So to enlarge the mini frames, use\setbeamersize
to change these length, e. g. like this:Minimal test code:
Result: