Change the login mask logo

[knolleary]

Do you mean this logo?

If so, you need to edit your settings file and update the editorTheme section to include a login section:

editorTheme: {
   //...
   login: {
        image: "/absolute/path/to/login/page/big/image" // a 256x256 image
    }
   //...
}

And then restart node-red.

https://nodered.org/docs/user-guide/runtime/configuration#editor-themes

@cigno

also is it possible to customize the login mask of my daschboard ?.

Node-RED Dashboard doesn't provide a login screen with a logo