ComfyUI/web/extensions/core/noteNode.js

import {app} from "../../scripts/app.js";
import {ComfyWidgets} from "../../scripts/widgets.js";
// Node that add notes to your project

app.registerExtension({
    name: "Comfy.NoteNode",
    registerCustomNodes() {
        class NoteNode {
            color=LGraphCanvas.node_colors.yellow.color;
            bgcolor=LGraphCanvas.node_colors.yellow.bgcolor;
            groupcolor = LGraphCanvas.node_colors.yellow.groupcolor;
            constructor() {
                if (!this.properties) {
                    this.properties = {};
                    this.properties.text="";
                }

                ComfyWidgets.STRING(this, "", ["", {default:this.properties.text, multiline: true}], app)

                this.serialize_widgets = true;
                this.isVirtualNode = true;

            }


        }

        // Load default visibility

        LiteGraph.registerNodeType(
            "Note",
            Object.assign(NoteNode, {
                title_mode: LiteGraph.NORMAL_TITLE,
                title: "Note",
                collapsable: true,
            })
        );

        NoteNode.category = "utils";
    },
});