change category back icon to text link

[vtjoanne]

Running latest phoca version 3.2.1
joomla 2.6

I'd like to know where and how to change icon-up-images.png so that there is no icon/back arrow, just a text link that simply say's "Back"
for the categories view back button only
Thanks!
Jo

[Jan]

Hi,

components/com_phocagallery/images
components/com_phocagallery/views/category/ ...

Jan