kenkel22 , you can do it by way :
open ja.cssmenu.css file in templates/ja_menus/ja_cssmenu folder :
add following code to it :
#ja-cssmenu li a.menu {
color:#FFFFFF;
display:block;
font-size:115%;
font-weight:bold;
line-height:30px;
margin:5px 0pt 0pt;
padding:0pt 20px;
text-decoration:none;
background:red;
}
is itemid of menu which you want change background color , example :
to change FAQ menu item on your site you add following code to a.cssmenu.css :
#ja-cssmenu li a.menu41 {
color:#FFFFFF;
display:block;
font-size:115%;
font-weight:bold;
line-height:30px;
margin:5px 0pt 0pt;
padding:0pt 20px;
text-decoration:none;
background:red;
}
itemid of FAQ menu item is 41.