I wanted to modify the font size/color for the filter list in admin panel. FF inspector shows this: .FilterList h4 a dfn So, the only file in XF containing that is admin_templates.xml in the install/data folder. I changed it to 12px and #888 color. Uploaded and overwrote the file of course. For some reason, the new CSS properties hasn't kicked in even after hard refreshing the page. Any idea?