Schema: Possible type error in image-average-color

The range of image-average-color suggests that the average of each color channel should be given as a unsigned 8-bit integer. As zero is included in this range, the maximum allowed value should be

$2^8 - 1 = 255$

rather then

$2^8$

.

"image-average-color": {
                    "description": "The average colour for each image / frame and the n channels of an image (e.g. 3 for RGB)",
                    "type": "array",
                    "minItems": 3,
                    "maxItems": 3,
                    "items": {
                        "type": "integer",
                        "minimum": 0,
                        "maximum": 256
                    }
                },

added v2.1.0 label

assigned to @tschoening

@kheger @christopher.kraemmer

As iFDO allows images with more or less than three channels, the limitation to three entries in the array also seems to not make sense.