karabiner.json

{
    "profiles": [
        {
            "devices": [],
            "fn_function_keys": {
                "f1": "vk_consumer_brightness_down",
                "f10": "mute",
                "f11": "volume_down",
                "f12": "volume_up",
                "f2": "vk_consumer_brightness_up",
                "f3": "vk_mission_control",
                "f4": "vk_launchpad",
                "f5": "vk_consumer_illumination_down",
                "f6": "vk_consumer_illumination_up",
                "f7": "vk_consumer_previous",
                "f8": "vk_consumer_play",
                "f9": "vk_consumer_next"
            },
            "name": "Default",
            "selected": true,
            "simple_modifications": {
                "caps_lock": "escape",
                "fn": "left_control",
                "left_control": "fn"
            }
        }
    ]
}