I tried to change colors at style-rtl.min.css at area below
.pp-plan-upgrade-info--action{background-image:-webkit-gradient(linear,right top,left top,from(#a368e6),to(#786bef));background-image:linear-gradient(-90deg,#a368e6 0,#786bef);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#FFA368E6",endColorstr="#FF786BEF",GradientType=1);color:#fff;-webkit-box-shadow:0 .4em .4em rgba(190,167,255,.58);box-shadow:0 .4em .4em rgba(190,167,255,.58)}#pp .pp-plan-upgrade-info--action .pp-plan-upgrade-info__desc{color:#fff}#pp
But no success
I just to want solid blue #0080e2 instead of purple gradient ...