Object Timeline

[
    {
        "objectApiName": "Task",
        "refFieldApiName": "WhatId",
        "titleField": "Subject",
        "dateField": "ActivityDate",
        "detailFields": [
            "Subject",
            "Description",
            "Status"
        ],
        "overdueExp": {
            "Status": {
                "operator": "!=",
                "value": "Completed"
            }
        },
        "recordActions": [
            {
                "name": "View",
                "label": "View",
                "navigate": {
                    "type": "standard__recordPage",
                    "attributes": {
                        "actionName": "view"
                    }
                }
            },
            {
                "name": "Edit",
                "label": "Edit",
                "navigate": {
                    "type": "standard__recordPage",
                    "attributes": {
                        "actionName": "edit"
                    }
                }
            }
        ],
        "themeInfo": {
            "iconName": "standard:event",
            "color": "black"
        }
    }
]