How i can change word ACTIVATE from script by an ICON?

hello, on my configuration.yaml
when i add:


On Home assistante interface show me


how i can change the word ACTIVATE by an icon?


Anyone have any ideas on this? I would love to be able to change the word ACTIVATE to an icon.

For example, I have a script that controls volume would love to click on the mdi:volume-plus icon in place of ACTIVATE.

The only thing I can do right now is add a delay to the script and change it to a toggle switch.