capabilities.json

{
    "dataRoles": [
        {
            "displayName": "Category Data",
            "name": "category",
            "kind": "Grouping"
        },
        {
            "displayName": "Measure Data",
            "name": "measure",
            "kind": "Measure"
        }
    ],
    "dataViewMappings": [
        {
            "conditions": [
                {
                    "category": {
                        "max": 1
                    },
                    "measure": {
                        "max": 1
                    }
                }
            ],
            "categorical": {
                "categories": {
                    "for": {
                        "in": "category"
                    }
                },
                "values": {
                    "select": [
                        {
                            "bind": {
                                "to": "measure"
                            }
                        }
                    ]
                }
            }
        }
    ],
    "objects": {
        "enableAxis": {
            "displayName": "Enable Axis",
            "properties": {
                "show": {
                    "displayName": "Enable Axis",
                    "type": { "bool": true }
                }
            }
        },
        "colorSelector": {
            "displayName": "Data Colors",
            "properties": {
                "fill": {
                    "displayName": "Color",
                    "type": {
                        "fill": {
                            "solid": {
                                "color": true
                            }
                        }
                    }
                }
            }
        },
        "generalView": {
            "displayName": "General View",
            "properties": {
                "opacity": {
                    "displayName": "Bars Opacity",
                    "type": {
                        "integer": true
                    }
                }
            }
        }
    }
}