Toggled highlight light gray (or other color) every other line for readability
Keep track of which line I'm reading on a computer screen is much easier if every other row has a noticeably different background/highlight. I know other people would also benefit from this because automatically highlighting every other row has been option on Excel and similar programs for years.
I think light gray would be a good default color (or dark gray for dark modes) since this would not conflict with the vast majority of highlighting schemes. The toggle and color selection could be placed next to the hide annotations option so users can turn off their highlights if they do conflict for easier reading.
Thank you for all you do!