<!DOCTYPE html>
<html>
<head>
<style>
img {
    font-size: 0;
}
</style>
</head>
<body>
<img src="../resources/green-400x400.png"></img>
<script>
addEventListener("load", () => {
    let image = document.querySelector("img");
    internals.installImageOverlay(image, [
        {
            topLeft : new DOMPointReadOnly(0.5, 0.5),
            topRight : new DOMPointReadOnly(1, 0.5),
            bottomRight : new DOMPointReadOnly(1, 1),
            bottomLeft : new DOMPointReadOnly(0.5, 1),
            children: [
                {
                    text : "Hello",
                    topLeft : new DOMPointReadOnly(0.5, 0.5),
                    topRight : new DOMPointReadOnly(1, 0.5),
                    bottomRight : new DOMPointReadOnly(1, 1),
                    bottomLeft : new DOMPointReadOnly(0.5, 1),
                }
            ],
        }
    ]);
    internals.shadowRoot(image).getElementById("image-overlay").style.color = "black";
});
</script>
</body>
</html>