gitlabhq/app/assets/stylesheets/themes/ui_mars.scss

/**
 * This file represent some UI that can be changed
 * during web app restyle or theme select.
 *
 * Next items should be placed there
 * - link colors
 * - header restyles
 *
 */
.ui_mars {

  /*
   *  Application Header
   *
   */
  header {
    background: #474D57 url('bg-header.png') repeat-x bottom;
    box-shadow:none;
    border-bottom: 1px solid #444;

    .fbtn {
      .btn {
        i {
          position: relative;
          top: 1px;
        }
        margin-left:8px;
        background-image: -webkit-gradient(linear, 0 0, 0 30, color-stop(0.066, #595D63), to(#31363E));
        background-image: -webkit-linear-gradient(#595D63 6.6%, #31363E);
        background-image: -moz-linear-gradient(#595D63 6.6%, #31363E);
        background-image: -o-linear-gradient(#595D63 6.6%, #31363E);
        font-size: 12px;
        &:hover {
          background-image: -webkit-gradient(linear, 0 0, 0 30, color-stop(0.066, #595D63), to(#2C2F35));
          background-image: -webkit-linear-gradient(#595D63 6.6%, #2C2F35);
          background-image: -moz-linear-gradient(#595D63 6.6%, #202227);
          background-image: -o-linear-gradient(#595D63 6.6%, #202227);
          background-position:0 0;
          color:#fff;
          i { 
            @extend .icon-white;
          }
        }

        border: 1px solid #31363E;
        color:#D6DADF;
        text-shadow: 0 -1px 0 #000000;
      }
    }
    .search {
      float: right;
      margin-right: 45px;
      .search-input {
        border: 1px solid rgba(0, 0, 0, 0.7);
        box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2), 0 2px 2px rgba(0, 0, 0, 0.4) inset;
        background-color: #D2D5DA;
        background-color: rgba(255, 255, 255, 0.5);

        &:focus {
          background-color: white;
        }
      }
    }
    .search-input::-webkit-input-placeholder {
      color: #666;
    }
    .app_logo {
      a {
        h1 {
          background: url('logo_white.png') no-repeat 0px -3px;
          color:#fff;
          text-shadow: 0 1px 1px #111;
        }
      }
      .separator {
        display:none;
      }

    }
    .project_name {
      color:#fff;
      text-shadow: 0 1px 1px #111;
    }
  }
  /*
   *  End of Application Header
   *
   */
}