stomCSS or Child Theme style.cssCSS

/* START OF Adjust Navbar Box Settings - colors */
 .tc-header, .navbar.notresp .navbar-inner  {
background-color:   pink;                                       /* Change pink */
background-image: linear-gradient(to bottom, white, pink);      /* Change white, pink */
background-image: -webkit-linear-gradient (top, white, pink);   /* Change white, pink */
background-repeat: repeat-x;
border:           1px solid pink;                               /* Change pink */
border-radius:    4px 4px 4px 4px;
box-shadow:       0 1px 4px rgba(0, 0, 0, 0.067);
min-height:       20px;
padding-left:     20px;
padding-right:    20px;
}
/* END OF Adjust Navbar Box Settings */