This suggestion is for all island-based servers, including Skyblock, OpSkyblock and Acidisland.
When you do /ai top, you can see the top islands and their island team. It shows a list of the members in a specific island. My suggestion is to highlight the names of ONLINE players in /is or /ai top so that ONLINE players have a different colour in /ai top than offline ones. Maybe make it so tha.. See more