- Function label defaults to "Your function" but gets updated to whatever the user labels it as, e.g. "Reverse string" or "Multiply"
- Input labels box defaults to "Input" but gets updated to whatever the user labels it as, e.g. "string" or "multiplier, multiplicand"
- Output labels box defaults to "Output" but …
- Highlight the item you're current editing
- Specific styling TBD.
- Placement on mobile very TBD.
