@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

.bookmark-item[label="about:config"],
#main-window[stylish-url="about:config"] #page-proxy-favicon,
.tabbrowser-tab[label="about:config"] .tab-icon-image 
{ list-style-image: url("data:image/png;base64,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") !important; }