add a title bar collapse image

[billyt]

I just installed the Collapsible Categories and would like to add an
image to the tile bar on the far right side is this possible and where
or what would I edit.

[Tumbleweed]

billyt,

You posted this question in several places and I locked one of your queries, however, I asked additional questions in this thread:

support.proboards.com/thread/462060/add-title-bar-collapse-image

Since this isn't a plug-in, you are fine to respond in the other thread.