This should be a really simple thing, but does seem to be. I wanted to use an icon for my search button. In the module I set “Use an Image” to yes, but this did nothing. My first search lead me to this page.
This did not work for me.
This page finally got me closer to what I needed; however, I really don’t like using a .gif file. The format is not as smooth as other formats.
I am using Gantry 5 Hydrogen theme and simply adding the “searchButton.gif” to the “/g5_hydrogen/images” folder got things working quickly.
I hope this helps someone else out there….