img.custom-logo-preview,
img.custom-favicon-preview,
img.custom-touch-icon-preview
  box-shadow: 0 0 3px lightgrey
  @include varprop(background-color, header-bg-color)

img.custom-logo-preview
  height: 42px

img.custom-favicon-preview
  height: 16px
  background-color: whiteSmoke

img.custom-touch-icon-preview
  height: 180px
  background-color: whiteSmoke