border也可以做出渐变色效果

.themeConfig {
	width: 250px;
    height: 117px;
    border: 1.5px solid transparent !important;
    border-radius: 8px !important;
    background-clip: padding-box, border-box;
    background-origin: padding-box, border-box;
    background-image: linear-gradient(to right, #2f2f33, #2f2f33),
      linear-gradient(270deg, #b7c3ff 0%, #a493f4 41.67%, #eca0f4 100%) !important;
  }