Is there a way to apply custom shaders to macOS screen? I know macOS has a feature to invert the screen using Control+Option+Command+8.



I was wondering if there is any way, like a macOS feature, an application, or even some API to apply other effects to the whole screen?
In High Sierra you can use keyboard shortcut to Invert Colors

Option+Command+I

More screen options are in System preference > Accessibility > Display