/*
 * The Download button resources/js/image-gallery-download.js adds to an image
 * gallery's full-screen viewer (Viewer.js), drawn like the toolbar's own
 * buttons: a white glyph on the round dark button, with its name as the
 * (invisible) content screen readers read. Viewer.js draws its glyphs from a
 * sprite; this one is an inline SVG, an arrow into a tray.
 */
.viewer-toolbar .viewer-download::before {
    background: no-repeat center / 16px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke-width='2.2' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M3 16.5v2.25A2.25 2.25 0 0 0 5.25 21h13.5A2.25 2.25 0 0 0 21 18.75V16.5M16.5 12 12 16.5m0 0L7.5 12m4.5 4.5V3'/%3E%3C/svg%3E");
    color: transparent;
    content: 'Download';
    display: block;
    font-size: 0;
    height: 20px;
    line-height: 0;
    width: 20px;
}