183Printing With MacintoshMacintosh Printer Driver FeaturesMatching Method Click this item or the arrows icon and select asetting from the pop-up menu to select the colormatching method.Auto Select for automatic selection of thematching method (Photo or Graphic)based on the content of the document.Photo Select to print photographs with naturalcolor and tones.Graphic Select for documents that containillustrations and graphics.Spot Color Select for a document with precise colorspecifications, like a color sample.Printer Profiles Select the printer profile used for color correction.Normally, “Recommended by Canon” is selected foryou.Gamma Correction Click this check box if you want to adjust the level ofcolor contrast. This turns Gamma Correction on.Otherwise, Gamma Correction is off and the printerdriver uses standard contrast.After you turn Gamma Correction on, move thebutton on the slide bar left or right to set a value.234