message: feat(tree): update tree style
diff: @@ -5,7 +5,8 @@ $prefix: '#{$component-prefix}-tree' !default;
  .#{$prefix} {
  &-searcher {
  position: relative;
  - color: use-color('gray', 800);
  + color: use-color('gray', 700);
  + padding: 0 use-spacing(4);
  &--empty {
  display: inline-block;
  