Hi,
I don’t know of any simple way, but there is a way:
1) Visit https://make.simplesharebuttons.com/ and grab the buttons in color of your choice (either circle or square-sized).
2) Extract the zip file from step 1) and run the png file with email button through base64 encoding – you can use some online service for that like https://www.base64-image.de/
3) Replace the legacy string with base64-encoded image either in simple-share-buttons-light/buttons/circle.php
or simple-share-buttons-light/buttons/square.php
. Be careful to not replace the encoding preamble (ie. the data:image/png;base64,
string).
Important: Note that your changes will be lost when you update the plugin, but given the frequency of plugin updates, this won’t happen often ??
Cheers,
?eslav