Improve HTML rendering of output from example cells.

[Devin-Crawford]

📝 Description of the feature

When viewed in dark mode the example text is difficult to read. The text is written in a light color on a white background.

💡 Steps for implementing the feature

Can this be handled by updating the css? Not sure.

🔗 Useful links and references

See the text output in the
Component Antenna Array example
when the array indices are printed.