MediaWiki:Common.js

Nota: Pos fisa, tu debe cisa sircoveni la memoria de tua surfador per vide la cambias.

Firefox / Safari: Presa la tecla Maj (Shift) e clica Refresci, o presa o Ctrl-F5 o Ctrl-R (⌘-R a Mac)
Google Chrome: Presa Ctrl-Shift-R (⌘-Shift-R a Mac)
Internet Explorer: Presa Ctrl e clica Refresci, o presa Ctrl-F5
Opera: Vade a Menu → Settings (Opera → Preferences a Mac) e de ala a Privacy & security → Clear browsing data → Cached images and files.

/* Any JavaScript here will be loaded for all users on every page load. */
mw.loader.using('mediawiki.util', function () {
    if (mw.config.get('wgCanonicalSpecialPageName') === 'Preferences') {
        var css = `
            .mw-htmlform-field-HTMLTextField {
                background: #fef6e0;
            }
        `;
        var style = document.createElement('style');
        style.innerHTML = css;
        document.head.appendChild(style);
    }
});