message: style(devtools): seting directive forest colors
diff: overflow: auto;
  .tree-node {
  - color: #111;
  + // color: #111;
  padding-top: 4px;
  padding-bottom: 4px;
  position: relative;
  &:hover {
  background-color: #d4e7ff;
  + color: rgba(0, 0, 0, 0.87);
  cursor: pointer;
  }
  &.matched {
  background-color: #b298e4;
  + color: rgba(0, 0, 0, 0.87);
  color: #fff;
  &:hover {
  background-color: #8463be;
  + color: rgba(0, 0, 0, 0.87);
  }
  &.selected {
  background-color: #6f56bb;
  + color: rgba(0, 0, 0, 0.87);
  color: #fcd736;
  }
  &.selected,
  &.highlighted {
  background-color: #92bdff;
  + color: rgba(0, 0, 0, 0.87);
  }
  }
  }
  