gnome-shell/data/theme/gnome-shell-sass/_widgets.scss

//
// Shell widgets stylesheets are placed in separate .scss files
// in 'widgets' and imported into the main stylesheet in this file.
// To create or update a widget for the shell modify the list below.
//

/* WIDGETS */
@import 'widgets/app-grid';
@import 'widgets/app-switcher';
@import 'widgets/buttons';
@import 'widgets/calendar';
@import 'widgets/check-box';
@import 'widgets/corner-ripple';
@import 'widgets/dash';
@import 'widgets/dialogs';
@import 'widgets/entries';
@import 'widgets/hotplug';
@import 'widgets/ibus-popup';
@import 'widgets/keyboard';
@import 'widgets/login-dialog';
@import 'widgets/looking-glass';
@import 'widgets/message-list';
@import 'widgets/notifications';
@import 'widgets/misc';
@import 'widgets/network-dialog';
@import 'widgets/osd';
@import 'widgets/overview';
@import 'widgets/panel';
@import 'widgets/popovers';
@import 'widgets/screen-shield';
@import 'widgets/scrollbars';
@import 'widgets/search-entry';
@import 'widgets/search-results';
@import 'widgets/slider';
@import 'widgets/switches';
@import 'widgets/tiled-previews';
@import 'widgets/window-picker';
@import 'widgets/workspace-switcher';