libraries/ManiaLib/Gui/Element.php
function setImageFocus($imageFocus, $absoluteUrl = false)
    {
        $this->setStyle(null);
        $this->setSubStyle(null);
        if (!$absoluteUrl) {
            $this->imageFocus = Manialink::$imagesURL . $imageFocus;
        } else {
            $this->imageFocus = $imageFocus;
        }
    }
function setImageFocus($imageFocus, $absoluteUrl = false)
    {
        $this->setStyle(null);
        $this->setSubStyle(null);
        if (!$absoluteUrl) {
            $this->imageFocus = Manialink::$imagesURL . $imageFocus;
        } else {
            $this->imageFocus = $imageFocus;
        }
    }
Applies an image to the highlighter state of the element
@param string The image filename (or URL)
@param bool Whether to prefix the filename with the default images dir URL