I am not an expert but I just spent a lot of time figuring this out myself.
In LyX go to document settings. Under fonts, check use XeTeX fonts, and pick your fonts.
You should be good to go.
If you want, or that doesn't work, you can also put the following in your preamble:
\setmainfont{nameofyourinstalledfont} %set font for main document
This will override the setting above.
If you want to change this at any time in your document, just insert an ERT with:
\setmainfont{nameofnewinstalledfont} %set new font for main document
You can also use fontspec
e.g.
\fontspec[Numbers=OldStyle]{Bergamo Std}
It depends on where you want to go...
Best Answer
.sty
files at the bottom of the post dated 2009-01-21 to the folder where your thesis.lyx
file is located.lyx
file and go to < Document | Settings | LaTeX Preamble >Replace the beamer theme references there with
\useoutertheme{wuerzburg}
\useinnertheme[outline]{chamfered}
\usecolortheme{shark}
and you should be done