The ReadMe file shows this
cat README.md

Module: MMM-SimpleLogo

The MMM-SimpleLogo module is third party modules of the MagicMirror. This module simply displays logo.

Using the module

To use this module, add it to the modules array in the config/config.js file:

modules: [
    {
        module: 'MMM-SimpleLogo',
        position: 'top_left',    // This can be any of the regions.
        config: {
            // The config property is optional.
            // See 'Configuration options' for more information.
        }
    }
]

Configuration options

The following properties can be configured:

Option	Description
fileUrl	File url. Possible values: Logo link form internet or path to your local files relative to MagicMirror directory Default value: 'modules/MMM-SimpleLogo/public/logo.png'
width	Set width of your logo, height is auto. Possible values: '300px' or '50%' Default value: '200px'
position	Horizontal position on current container Possible values: left, center, or right Default value: left
refreshInterval	Refresh/refetch image file between interval. Only use this if your image url return different image after some interval of time, even the fileUrl is not changed. See this case #2, awesome project by @ElYoM Possible values: 1000, 2000, or 10000 Default value: 0 (disabled)
text	Text above the image. Possible values: Any text Default value: Simple Logo

Notification Events

The MMM-SimpleLogo module supports the notification event SIMPLE_LOGO_UPDATE which allows the configuration to be dynamically modified. As an example, the MMM-OnScreenMenu module might be used to dynamic adjust the fileURL parameter as follows:

{
    module: "MMM-OnScreenMenu",
    position: "top_left",
    config: {
        menuItems: {
            notify1: {
                title: "Show Cat",
                notification: "SIMPLE_LOGO_UPDATE",
                payload: {
                    fileUrl: "cat.jpg",
                    width: "750px"
                }
            },
            notify2: {
                title: "Show Dog",
                notification: "SIMPLE_LOGO_UPDATE",
                payload: {
                    fileUrl: "dog.jpg",
                    width: "1050px"
                }
            }
        }
    }
}

@sdetweil changing the simplelogo.js back and putting updates in config.js has not made any changes. the logo still stays on the same logo, never changes.

I don’t understand why people have to be so confrontational and un helpful. Making changes the the DEFAULT portion of the main file ONLY affects the initial settings.

As far as what I mean by auto changing logo, that is what I understood by the documentation for the module.
Dynamic to me means it will change at a given amount of time…

****** Copy/Paste from MMM-SimpleLogo*****
The MMM-SimpleLogo module supports the notification event SIMPLE_LOGO_UPDATE which allows the configuration to be dynamically modified. As an example, the MMM-OnScreenMenu module might be used to dynamic adjust the fileURL parameter as follows

---

Module.register("MMM-SimpleLogo", {
    // Default module config.
    defaults: {
        text: "",
        fileUrl: "modules/MMM-SimpleLogo/public/Amc.JPG",
        width: "200px",
	notification: "SIMPLE_LOGO_UPDATE",
        position: "top_center",
        refreshInterval: 1000
    },

    start: function() {
        if (this.config.refreshInterval > 0) {
            var self = this;
            var imgsrc = self.config.fileUrl;
            this.interval = setInterval(function() {
                img = document.querySelector(".simple-logo__container img[src*='" + imgsrc + "']");
                imgsrc = self.config.fileUrl;
                if(!imgsrc.includes("?"))
                        imgsrc += '?' + Date.now();
                else
                        imgsrc += '&' + Date.now();
                img.setAttribute('src', imgsrc);
            }, this.config.refreshInterval);
        }
    },

    getStyles: function () {
        return [
            this.file('css/mmm-simplelogo.css')
        ];
    },

    notificationReceived: function(notification, payload) {
        if (notification == "SIMPLE_LOGO_UPDATE") {
            // stop auto-refresh (if any)
            if (this.config.refreshInterval > 0) {
                clearInterval(this.interval);
            }
            // update with new parameters
            for (var attr in payload) this.config[attr] = payload[attr];
            // restart auto-refresh (if any)
            this.start();
            this.updateDom();
        }
    },

    // Override dom generator.
    getDom: function() {
        var wrapper = document.createElement("div");
        wrapper.className = 'simple-logo__container';
        wrapper.classList.add(this.config.position);
        wrapper.style.width = this.config.width;
        var text = document.createTextNode(this.config.text);
        wrapper.appendChild(text);
        var img = document.createElement("img");
        img.setAttribute('src', this.config.fileUrl);
        wrapper.appendChild(img);
        return wrapper;
    }
});

@sdetweil I left that as default in the MMM-SimpleLogo.js - it isn’t clear what needs to change in there.

I installed SimpleLogo and have it showing my custom logo, however I can’t seem to figure out what changes need to be done to make the logo auto change.
I did install the onscreen menu and have it working, what am I missing?
Thank you for any advise you can give me.