I want to use my own script to display size charts. Does the app have an API to get size chart content?

document.addEventListener('prikid_content_ready', function (e) {
    //getting the HTML content of the size chart
    var html_content=e.detail.content;
});

<script>
   /*Just create a dummy invisible placeholder to prevent auto-placing links/buttons by the app. When the app finds the element with the class 'prikid-size-chart-button-placeholder' it puts the link/button there instead of trying to find the best place automatically. But here we create the placeholder and make it invisible, so the app will put the button here but we won't see it on the page */

    document.addEventListener("DOMContentLoaded", () => {
        var dummy_placeholder = document.createElement("div");
        dummy_placeholder.classList.add('prikid-size-chart-button-placeholder');
        dummy_placeholder.style.display = "none";
        document.body.appendChild(dummy_placeholder);
    });

    // listen for the app's 'prikid_content_ready' event and then place our
    // custom button and the content received from the app
    document.addEventListener('prikid_content_ready', function (e) {
        // Create the button element
        var button = document.createElement("button");
        button.innerHTML = "Open Size Guide";
        document.body.appendChild(button);

        // Create the sidebar element
        var sidebar = document.createElement("div");
        sidebar.id = "sidebar";

        // Inject size chart content to the sidebar
        sidebar.innerHTML = e.detail.content;

        // adding the sidebar to the document
        document.body.appendChild(sidebar);

        // Add styles to the button and sidebar
        button.style.position = "fixed";
        button.style.top = "50px";
        button.style.zIndex = '1000'
        button.classList.add('button')

        sidebar.style.position = "fixed";
        sidebar.style.top = "0";
        sidebar.style.zIndex = '1000'
        sidebar.style.right = `-${sidebar.clientWidth}px`;
        sidebar.style.padding = "15px";
        sidebar.style.height = "100vh";
        sidebar.style.backgroundColor = "#f1f1f1";
        sidebar.style.transition = "right 0.3s ease";


        // Function to open the sidebar
        function openSidebar() {
            sidebar.style.right = "0";
        }

        function isSidebarOpen() {
            return sidebar.style.right === "0"
        }

        // Function to close the sidebar
        function closeSidebar() {
            sidebar.style.right = `-${sidebar.clientWidth}px`;
        }

        // Add event listener to the button
        button.addEventListener("click", openSidebar);

        // Close the sidebar when clicked outside of it
        document.addEventListener("click", function (event) {
            if (!sidebar.contains(event.target) && event.target !== button) {
                closeSidebar();
            }
        });
    })
</script>