Customize CSS styles with your own overrides in this section and keep it after upgrade. Only Custom CSS tab is editable all other files help to look up default styling and copy in case of need.
Action buttons available for items selected in the list below.
Save Custom CSS
Save Custom CSS tab styles and remain on edit form. Helpful when you try different parameters and check changes on a front-end.
Custom CSS Tab
Make your changes here and don't forget to click Save when you finish. Custom CSS is stored in a database and won't get overwritten during an update. Make sure you add all your customizations there to avoid custom CSS loss that made in native FW Gallery CSS file.
FW Gallery CSS Tab
Non-editable native FW Gallery CSS file. It was added for reference to allow find particular styles and copy/modify them in Custom CSS without a risk of loss data at update.