Arrow-left / arrow-right "icons" (Solved)

Hi,

Didn’t know where to put it, hope this is the correct part for my question. On for example the " Mabox-Superdesk" theme there are arrows on both sides of the panel. I would like to edit these icons but I can’t find them on the filesystem/ I discovered if i put for example “arrow-up” in the box where you specify the arrow, the arrow indeed changes to an upwards pointing arrow. My question is, are these really icons or is it somewhere translated to an icon that’s part of the selected icon set?

Regards,

Douwe

Yes, found it at last!