Re-Good-Catalina-Invert-Colours - Fix "Invert Display Colour" on Mac OS X Catalina

Age	Commit message (Collapse)	Author
2021-03-05	Add 'DDHotKey' library	Teddy Wing
	Trying this out for registering a global hotkey.
2021-03-04	Reset colours to their original state	Teddy Wing
	Found an easy function to remove the colour inversion. Now I need to enable toggling between the two with a keyboard shortcut.
2021-03-04	Invert all displays	Teddy Wing
	Previously, I was only inverting the main display. Get a list of active displays and invert all of them. Decided to set the maximum display count to eight because that seemed like a sufficiently high number for most people.
2021-03-04	Rename `gamma` table to `inverted_gamma`	Teddy Wing
	More descriptive this way.
2021-03-04	Skeleton for error handling	Teddy Wing

2021-03-04	Remove unused `CGGammaValue` tables	Teddy Wing

2021-03-04	Run forever	Teddy Wing
	Rather than sleeping, keep the program active until it's exited manually.
2021-03-03	Try inverting display colours	Teddy Wing
	Invert the screen colours for as long as the program is active. Only works on the main display currently. Inspired by Nikolai Ruhe's (https://stackoverflow.com/users/104790/nikolai-ruhe) answer on Stack Overflow about screen colour inversion: https://stackoverflow.com/questions/14163788/how-does-on-screen-color-inversion-work-in-os-x/14165523#14165523 and this question: https://stackoverflow.com/questions/32823023/permanently-modifying-rgb-gamma-table