yanlış yerden almadıysam css koduda aşağıda
/* 1 - START NICDARKBG*/
.nicdark_bg_white{ background-color: #ffffff; }
.nicdark_bg_grey{ background-color: #f9f9f9; }
.nicdark_bg_grey2{ background-color: #f1f1f1; }
.nicdark_bg_greydark{ background-color: #495052;}
.nicdark_bg_greydark2{ background-color: #404547 !important;}
.nicdark_bg_gradient{
background: #74cee4; /* Old browsers */
background: -moz-linear-gradient(left, #74cee4 0%, #66ce9c 16%, #edbf47 32%, #ec774b 49%, #74cee4 65%, #66ce9c 83%, #edbf47 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#74cee4), color-stop(16%,#66ce9c), color-stop(32%,#edbf47), color-stop(49%,#ec774b), color-stop(65%,#74cee4), color-stop(83%,#66ce9c), color-stop(100%,#edbf47)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, #74cee4 0%,#66ce9c 16%,#edbf47 32%,#ec774b 49%,#74cee4 65%,#66ce9c 83%,#edbf47 100%); /* 
