is there a skin pak
Go to the <a href="http://www.mplayerhq.hu/design7/dload.html
>downloads[/url] section of the Mplayer site. Scroll down to the Skins section and choose one you like.
From the Mplayer readme
STEP5: Installing a GUI skin
Unpack the archive and put the contents in /usr/local/share/mplayer/skins/ or
~/.mplayer/skins/. MPlayer will use the skin in the subdirectory named default
of /usr/local/share/mplayer/skins/ or ~/.mplayer/skins/ unless told otherwise
via the '-skin' switch. You should therefore rename your skin subdirectory or
make a suitable symbolic link.
Create a skins directory in your .mplayer directory and unpack your downloaded skin there. The next time you open Mplayer your new skin will be used.