index.less

@root-entry-name: 'default';
@import '~antd/es/style/themes/index.less';
@tree-custom-prefix-cls: ~'@{ant-prefix}-tree-custom';

.@{tree-custom-prefix-cls}-base {
  .@{ant-prefix}-tree-node-content-wrapper.@{ant-prefix}-tree-node-selected {
    background-color: #e7f3fd;
  }

  .@{ant-prefix}-tree-node-content-wrapper:hover {
    background-color: #f8f8f8;
  }
}