I've been searching here and I've found nothing. BTW I suppose that this has been asked before... So, could anyone post a link or something to a tutorial or give me some gidance??? What I have is the sbuilder map in bmp format, what I want to do is edit it to add as a night texture under map properties (like seasons), but I don't know how to edit the image (In Photoshop I suppose) and what name to give the edited texture. Thanks!