staff.user.css

/* ==UserStyle==
@name        wikimedia staff account reminder
@namespace   StylishThemes
@version     1.0.9
@homepageURL https://github.com/quiddity-wp/wikimedia-style-tweaks
@updateURL   https://raw.githubusercontent.com/quiddity-wp/wikimedia-style-tweaks/master/staff.user.css
@license     CC-BY-SA-4.0
@author      quiddity-wp
==/UserStyle== */
@-moz-document domain("wikipedia.org"), 
  domain("meta.wikimedia.org"), 
  domain("office.wikimedia.org"), 
  domain("commons.wikimedia.org"), 
  domain("species.wikimedia.org"), 
  domain("outreach.wikimedia.org"), 
  domain("wikimania.wikimedia.org"), 
  domain("foundation.wikimedia.org"), 
  domain("wikitech.wikimedia.org"), 
  domain("wiktionary.org"), 
  domain("mediawiki.org"), 
  domain("wikisource.org"), 
  domain("wikivoyage.org"), 
  domain("wikibooks.org"), 
  domain("wikinews.org"), 
  domain("wikiversity.org"), 
  domain("wikiquote.org"), 
  domain("wikidata.org"), 
  domain("beta.wmflabs.org"), 
  domain("wikifunctions.org") { 
/* NOTE: VECTOR SKIN is assumed. */
/* Staff account, pink sidebar */
  #mw-panel, 
  .editOptions,
  .ve-ui-mwSaveDialog-savePanel, 
  .vector-menu-content .vector-dropdown-content, 
  .vector-unpinned-container, 
  .vector-pinned-container {
    background-color: #F7D7D7; background-image:none
    }
}