Able to change button text/icon

Current the button shows the shopping cart FA icon. While it looks good, but it may confuse website users as it seems more like a shopping cart button rather than donation button. I figure I can modify the tinycoffee.php and replace <i class=”fa fa-shopping-cart”></i> with Donate, but I hope there is a better way to achieve it.

https://www.ads-software.com/plugins/tinycoffee/