tire-platform-ui/src/styles/theme/dark.scss

.theme-dark {
  .avue-logo{
    color: #fff;
    background-color: #2c3643;
    box-shadow: none;
    .avue-logo_title{
      font-size: 20px;
      font-weight: 400;
    }
  }
  .avue-top{
    background-color: #2c3643;
    box-shadow: none;
    color:#ccc;
    i, span{
      color:#ccc;
    }
  }
  .avue-main{
    padding: 0 5px;
  }
  .avue-tags{
    padding-left: 0;
    background-color: #2c3643;
    border-color:  transparent;
    .el-tabs__item{
      margin: 0 !important;
      background-color: #262d37;
      &.is-active{
        color:#262d37 !important;
        background-color:#fff !important;
        border-color: #262d37 !important;
      }
    } 
  }
  .avue-main{
    background-color: #2c3643;
  }
  .avue-sidebar{
    background-color: #2c3643;
    box-shadow: none;
    .el-menu-item,.el-submenu__title{
      i,span{
          color:#ccc;
      }
      &:hover,&.is-active{
        background: #262d37;
          i,span{
            color: #fff;
          }
          &:before{
            background-color: #000;
          }
      }
    }
  }
}