Pandas: How to easily share a sample dataframe using df.to_dict()?

Despite the clear guidance on How do I ask a good question? and How to create a Minimal, Reproducible Example, many just seem to ignore to include a reproducible data sample in their question. So what is a practical and easy way to reproduce a data sample when a simple pd.DataFrame(np.random.random(size=(5, 5))) is not enough? How can you, for example, use df.to_dict() and include the output in a question?

Plotly: How to define colors in a figure using Plotly Graph Objects and Plotly Express?

There are many questions and answers that touch upon this topic one way or another. With this contribution I’d like to clearly show why an easy approch such as marker = {'color' : 'red'} will work for plotly.graph_objects (go), but color='red' will not for plotly.express (px) although color is an attribute of both px.Line and px.Scatter. And I’d like to demonstrate why it’s awesome that it doesn’t.