palemoon-dev/palemoon/themes/linux/feeds/subscribe-ui.css

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

.alwaysUse {
  padding: 5px;
}

.handlersMenuPopup > menuitem {
  padding-inline-start: 23px;
}

.handlersMenuPopup > menuitem.menuitem-iconic {
  padding-inline-start: 2px;
}

.handlersMenuPopup > .menuitem-iconic  > .menu-iconic-left {
  display: -moz-box;
  min-width: 16px;
  padding-inline-end: 2px;
}

.chooseApplicationMenuItem {
  list-style-image: url("moz-icon://dummy.exe?size=16");
}

#feedHeader[dir="rtl"] .handlersMenuList > menupopup {
  direction: rtl;
}