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Listens for keyboard brightness keypresses and alters brightness on all supported displays. Note: This is primarily intended for Macs with no internal display, but should work for those with an internal display. Note: External displays will only respond to brightness change requests if they were either made by Apple, or are LG UltraFine displays (which were designed by Apple). Note: If your keyboard brightness keys aren't triggering this Spoon, use Karabiner Elements to set them to display_brightness_decrement and display_brightness_increment.


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