They are images. The three main ones are:-
http://www.terisentelle.com/vlog/wp-..._flower/bg.jpg
It is only 3px high but if you expand this to say 30px high you will see that it is blue in the middle with shadow at both sides and it is repeated vertically with the code
<body style="background: url(http://www.terisentelle.com/vlog/wp-..._flower/bg.jpg) repeat-y top center #AAAAAA fixed;">
The blue doesn't show because the divs in the middle are white so only the side shadows show.
http://www.terisentelle.com/vlog/wp-...er/topgrad.jpg
http://www.terisentelle.com/vlog/wp-...er/pagebar.jpg
Code downloaded to my PC will be deleted in due course.
WIN7; IE9, Firefox, Opera, Chrome and Safari for Windows; screen resolution usually 1366*768.
Also IE6 on W98 with 800*600 and IE8 on Vista 1440*900.