@theia/core/src/electron-browser/menu/electron-menu-style.css

Theia is a cloud & desktop IDE framework implemented in TypeScript.

/********************************************************************************
 * Copyright (C) 2021 TypeFox and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
 ********************************************************************************/

#theia-drag-panel {
  position: absolute;
  display: block;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(100% - 4px);
  margin: 4px;
  -webkit-app-region: drag !important;
}

#theia-top-panel > * {
  -webkit-app-region: no-drag;
}

#theia-custom-title {
  position: absolute;
  left: 50%;
  transform: translate(-50%, 0px);
  line-height: 30px;
  flex: 0 1 auto;
  font-size: 12px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-top: 2px;
  margin-left: auto;
  margin-right: auto;
  zoom: 1;
  -webkit-app-region: drag !important;
}

#theia-custom-title.relative {
  transform: none;
}

#theia-custom-title.hidden {
  visibility: hidden;
}

#window-controls {
  display: grid;
  grid-template-columns: repeat(3, 48px);
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
}

#window-controls .control-button {
  display: flex;
  line-height: 30px;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

#minimize-button {
  grid-column: 1;
}

#maximize-button,
#restore-button {
  grid-column: 2;
}

#close-button {
  grid-column: 3;
}

#window-controls .control-button {
  user-select: none;
}

#window-controls .control-button:hover {
  background: rgba(50%, 50%, 50%, 0.2);
}

#window-controls #close-button:hover {
  background: #e81123;
}

#window-controls #close-button:hover:before {
  color: white;
}

body:not(.maximized) #restore-button {
  display: none;
}

body.maximized #maximize-button {
  display: none;
}