Trying to change mouse image, giving 'Value type error in config.json'?

[Dragon911XX]

I've added a bit of code to see if it's possible to change the mouse image on mouse key presses, but it's throwing an error. I just want to confirm if it's something that is possible, or if I'm trying to do something that isn't possible.

{
    "mode": 5,
    "resolution": {
        "letterboxing": false,
        "width": 1920,
        "height": 1080,
        "horizontalPosition": 0,
        "verticalPosition": 0
    },
    "decoration": {
        "leftHanded": false,
        "rgb": [255, 255, 255],
        "offsetX": [0, 11],
        "offsetY": [0, -65],
        "scalar": [1.0, 1.0]
    },
    "osu": {
        "mouse": true,
        "paw": [255, 255, 255],
        "pawEdge": [0, 0, 0],
        "key1": [1],
        "key2": [2],
        "smoke": [248],
        "wave": [249]
    },
    "taiko": {
        "leftCentre": [88],
        "rightCentre": [67],
        "leftRim": [90],
        "rightRim": [86]
    },
    "catch": {
        "left": [37],
        "right": [39],
        "dash": [16]
    },
    "mania": {
        "4K": true,
        "key4K": [68, 70, 74, 75],
        "key7K": [83, 68, 70, 32, 74, 75, 76]
    },
	"custom": {
		"mouse": true,
		"paw":[255, 255, 255],
		"pawEdge": [0,0,0],
		"background": "img/custom/mousebg.png",
		"mouseImage":[
			{
			"defaultImage": "img/custom/mouse.png",
			"keys":[
				{
				"image": "img/custom/mouse1",
				"keyCodes":[1]
				},
				{
				"image": "img/custom/mouse2",
				"keyCodes":[2]
				}
			]
			}
		]
	}
}

[Dumb Bird]

If I had to guess your issue seems to be due to excluding the file extension of your images

{
    "mode": 5,
    "resolution": {
        "letterboxing": false,
        "width": 1920,
        "height": 1080,
        "horizontalPosition": 0,
        "verticalPosition": 0
    },
    "decoration": {
        "leftHanded": false,
        "rgb": [255, 255, 255],
        "offsetX": [0, 11],
        "offsetY": [0, -65],
        "scalar": [1.0, 1.0]
    },
    "osu": {
        "mouse": true,
        "paw": [255, 255, 255],
        "pawEdge": [0, 0, 0],
        "key1": [1],
        "key2": [2],
        "smoke": [248],
        "wave": [249]
    },
    "taiko": {
        "leftCentre": [88],
        "rightCentre": [67],
        "leftRim": [90],
        "rightRim": [86]
    },
    "catch": {
        "left": [37],
        "right": [39],
        "dash": [16]
    },
    "mania": {
        "4K": true,
        "key4K": [68, 70, 74, 75],
        "key7K": [83, 68, 70, 32, 74, 75, 76]
    },
    "custom": {
        "mouse": true,
        "paw": [255, 255, 255],
        "pawEdge": [0, 0, 0],
        "background": "img/custom/mousebg.png",
        "mouseImage": [
            {
                "defaultImage": "img/custom/mouse.png",
                "keys": [
                    {
                        "image": "img/custom/mouse1.png",
                        "keyCodes": [1]
                    },
                    {
                        "image": "img/custom/mouse2.png",
                        "keyCodes": [2]
                    }
                ]
            }
        ]
    }
}