Something strange has happened to my Photoshop CS. I have noticed just for the last few days that the foreground and background colors have become inverted. By this I mean, for example, if I use the Eyedropper Tool to select a new color, which, by definition should become the new foreground color, it becomes the background color instead. Then I have to swap the foreground / background colors to use this new with the Paintbrush Tool. This is the way Photoshop is every time I start it now. This is not good.
Is my ignorance preventing me from knowing that there is a way I inadvertently caused these two to be reversed all the time? or has my Photoshop rendition just blown a fuse and wigged out?