message: Fix Invisible sidebar titles
diff: @@ -1473,7 +1473,7 @@ html[dir='rtl'] .outlineItem > .outlineItems {
  height: auto;
  margin-bottom: 1px;
  border-radius: 2px;
  - color: hsla(0,0%,100%,.8);
  + color: #333;
  font-size: 13px;
  line-height: 15px;
  -moz-user-select: none;
  @@ -1548,7 +1548,7 @@ html[dir='rtl'] .outlineItemToggler::before {
  0 0 1px hsla(0,0%,100%,.2) inset,
  0 0 1px hsla(0,0%,0%,.2);
  border-radius: 2px;
  - color: hsla(0,0%,100%,.9);
  + color: black;
  }
  .outlineItem.selected {
  