This feature is also not available for the latest PC version. I think adding highlighter colors is somewhat similar to the mindset behind using Post-It colors (somewhat recent team-up with Post-It), so hopefully they won't be adverse to adding that feature.
Different Colors for Highlighter
in General Feature Requests
Posted
This feature is also not available for the latest PC version. I think adding highlighter colors is somewhat similar to the mindset behind using Post-It colors (somewhat recent team-up with Post-It), so hopefully they won't be adverse to adding that feature.