In almost any reference I look, the adjective graphic refers to:
producing very clear and detailed mental images:
She described her operation in the most graphic detail.
However, on almost any given news program in the US, it is common to hear the anchor warning...
"...and we warn you, the following images are very graphic"
and what follows is usually disturbing: broken, bleeding bodies being pulled from bombed out buildings, mothers weeping in anguish, blood, gore and general mayhem.
Is the adjective being mis-used, or is it acquiring a new usage?