libraries/ManiaLib/Gui/Element.php
function setBgcolor($bgcolor)
    {
        $this->bgcolor = $bgcolor;
        $this->setStyle(null);
        $this->setSubStyle(null);
    }
function setBgcolor($bgcolor)
    {
        $this->bgcolor = $bgcolor;
        $this->setStyle(null);
        $this->setSubStyle(null);
    }
Sets the background color of the element using a 3-digit RGB hexadecimal
value. For example, "fff" is white and "000" is black
@param string 3-digit RGB hexadecimal value