message: Style enhancements to mapper value hints.
  Use sans-serif font as in VxD
  Use white background
diff: // depends on editor style
  line-height: 2;
  padding: 8px 15px 8px 60px;
  - font-family: @editor-font;
  font-size: 13px;
  overflow: auto;
  }
  .hints-overlay__hint {
  - font-family: @editor-font;
  + background-color: #fff;
  color: @primary-blue;
  min-width: 74px;
  border-radius: 4px;
  margin-right: 10px;
  line-height: 1.8;
  margin-bottom: 6px;
  - opacity: 0.8;
  &:hover {
  background-color: @lighter-gray;
  }
  