I am currently using the emacs GUI.
I have a custom theme defined for a particular buffer, but when the text runs over the line, an overlay takes over (presumably handling truncation) in the margins. I'm having trouble finding the name of this overlay so that I can create a custom face for it. I cannot find face at point for obvious reasons. Does anyone have any suggestions as to how I may find and alter it? Perhaps using face at point with the mouse?
Fringes are currently off (fringe-mode returns 0), but I have modified the marigin-widths.
I have included an image illustrating the problem.