I want to change the color of those circled parts in picture .
Look in
global.css for this.
.thead {
background: linear-gradient(#3498db,#3498db);
color: #fff;
border-bottom: 1px solid #3498db;
padding: 8px;
}
Change what the # color is that you want it to be.
Really Thanks for your help
Not a problem. Hope that helps you out.