ComfyUI/web/extensions/core/noteNode.js

import { app } from "../../scripts/app.js";
import { ComfyWidgets } from "../../scripts/widgets.js";
import { ComfyGraphNode } from "../../scripts/graphNode.js";
import { LiteGraph } from "../../lib/litegraph.core.js"

// Node that add notes to your project

app.registerExtension({
    name: "Comfy.NoteNode",
    registerCustomNodes() {
        class NoteNode extends ComfyGraphNode {
            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({
			class: NoteNode,
            title_mode: LiteGraph.NORMAL_TITLE,
			type: "Note",
            title: "Note",
            collapsable: true,
		});

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