message: undo changes to CollapsibleTitle.scss
diff: }
  .gradientBackground & {
  - background-color: rgba(0, 0, 0, 0.1);
  + background-color: rgba(0, 0, 0, 0.2);
  &:hover,
  &.collapsed {
  background-color: rgba(0, 0, 0, 0.4);
  