tstring.vl

{
    "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
    "data": {
        "values": [
            {
                "x": 10,
                "y": 2
            },
            {
                "x": 30,
                "y": 5
            },
            {
                "x": 40,
                "y": 30
            }
        ]
    },
    "encoding": {
        "text": {
            "value": "🐕"
        },
        "x": {
            "field": "x",
            "type": "quantitative"
        },
        "y": {
            "field": "y",
            "type": "quantitative"
        }
    },
    "height": 100,
    "mark": "text",
    "width": 100
}