Karabiner-Elements keyboard remap

karabiner.json

{
    "profiles": [
        {
            "name": "HHKBesque",
            "selected": true,
            "simple_modifications": {
                "escape": "grave_accent_and_tilde",
                "grave_accent_and_tilde" : "escape",
		            "caps_lock": "left_control",
                "backslash" : "delete_or_backspace",
                "delete_or_backspace" : "backslash"
            }
        },
        {
            "name": "HHKB",
            "selected": false,
            "simple_modifications": {
                "escape": "grave_accent_and_tilde",
                "grave_accent_and_tilde" : "escape",
                "backslash" : "delete_or_backspace",
                "delete_or_backspace" : "backslash"
            }
        },
        {
            "name": "POK3R",
            "selected": false,
            "simple_modifications": {
                "backslash" : "delete_or_backspace",
                "delete_or_backspace" : "backslash"
            }
        }
    ]
}