upgrade constant

String const upgrade

Implementation

static const String upgrade =
    '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" preserveAspectRatio="xMidYMid meet" viewBox="0 0 16 16"><path fill="currentColor" fill-rule="evenodd" d="m14 6-1.5-1.5-3.44-3.44L8 0 6.94 1.06 3.5 4.5 2 6h3v7h6V6h3ZM8 2.121 10.379 4.5H9.5v7h-3v-7h-.879L8 2.121ZM5.75 14.5a.75.75 0 000 1.5h4.5a.75.75 0 000-1.5h-4.5Z" clip-rule="evenodd"/></svg>';