Simple CSS fix in simpleblack theme

An active link (class .active meaning that's the current page) has this style: ul#simplemenu a.active { background: #555555; } (note this isn't exactly how the CSS looks; I'm doing this in Firebug). This code obscures the background image when that page is a parent link (so one doesn't see the arrows indicating it is a drop-down). The fix is very simple; use 'background-color' instead of 'background': ul#simplemenu a.active { background-color: #555555; }