Adding colors for legends in Power BI custom visual

[bhavesh-jadav]

Hello there,

I have column with 2 distinct value say A and B. I want to give ability to a user to change colors of A and B category. I managed to display color settings for each cateogry in that column but I am not sure how to fetch and retain those value.

capabilities.json file

"objects": {
        "alertSettings": {
            "displayName": "Alert",
            "properties": {
                "color": {
                    "displayName": "Color",
                    "type": {
                        "fill": {
                            "solid": {
                                "color": true
                            }
                        }
                    }
                }
            }
        }
    }

Settings enumeration function

public enumerateObjectInstances(options: EnumerateVisualObjectInstancesOptions): VisualObjectInstance[] | VisualObjectInstanceEnumerationObject {
            const settings: VisualObjectInstance[] = [];
            switch (options.objectName) {
                case 'alertSettings':
                    // uniqueAlerts is an array containing unique values from alert column.
                    this.uniqueAlerts.forEach((alert) => {
                        settings.push({
                            objectName: options.objectName,
                            displayName: alert,
                            properties: {
                                color: ''
                            },
                            selector: {
                                metadata: alert
                            }
                        });
                    })
                    break;
            
                default:
                    break;
            }
            if (settings.length > 0) {
                return settings;
            } else {
                return (AutoPlantVisualSettings.enumerateObjectInstances(this.autoPlantSettings, options) as VisualObjectInstanceEnumerationObject);
            }
        }

By using above code I got the following result.

How do I get the color value selected by user?