No 27' iMac is PPC. PPC is the acronym for PowerPC, the CPU found in pre-2006 Macs. This is a user to user forum. And yes there are tools to help you. Go to Apple menu -> System Preferences -> Universal Access. There is an on screen magnifying glass. Third party software known as Tinkertoolalso gives you access to more font solutions. Apple menu -> System Preferences -> General lets you change at what font size smoothing happens. Apple menu -> System Preferences -> Displays -> Color lets you adjust the color saturation of the machine to avoid the eyestrain caused by the mixed colors used in the font smoothing. In some cases those with limited color blindness may have more issue than those without.
Jan 12, 2020 Creating a mask is as simple as painting with your cursor. Here, the Structure filter has been added to the foreground, but masked out of the background. Unlike Luminar 2018, Luminar 3 doesn’t automatically come as a plugin. For that you’ll need to download a separate program called Luminar Flex. Luminar has a host of small but useful features up its sleeve to help novices. On a Mac) anywhere in the background area of your editing workspace to change.