Quartz Debug MacQuartz Debug For Mac High SierraQuartz MacThe easiest way to turn on the image-tinting option is from the Tools menu in Quartz Debug v4.2. Figure 5-3 The tinting option in the Quartz Debug Tools menu. You can also access the feature from the command line using Terminal. To turn on the tinting option. In Xcode, go the the menu bar and click Xcode Open Developer Tool Quartz Debug. ..