Typo in https://dash.plotly.com/all-in-one-components

"Then in our application app.py , we can use this component like: […]

app.layout = MarkdownWithColorAIO('## Hello World'),

"
Has a comma at the end of the line that I think should be erased. Otherwise the example doesn’t run for me.

Good catch, thank you for reporting!

Should be good now, thanks again!