MediaWiki:Group-templateeditor.css
/* Protected pages have text area in light red, to prevent
accidental editing by template editors who didn't notice the header */
.mw-textarea-protected, .mw-textarea-protected + .ui-resizable .ace_content, .mw-textarea-protected + .CodeMirror {
background-color: #FFE0E0;
}
/* Show hidden items that have class="templateeditor-show". */ div.templateeditor-show, p.templateeditor-show {
display: block !important;
} span.templateeditor-show, small.templateeditor-show {
display: inline !important;
} table.templateeditor-show {
display: table !important;
} li.templateeditor-show {
display: list-item !important;
}