Help with exploration map

So I wil be running a pirate campaign, and part of it would be the world map exploration. Is there a way in which they use the token to reveal the map automaticaly with it's line of sight, but when the token moves, the part thay they already have explored still be in sight but without the fog of war turning what they see in a grayish tone, basically modifying the opacity for the players view?

Check out the Hexploration script. It might be what you're looking for. <a href="https://app.roll20.net/forum/post/6927322/script-hexploration-thread-2/?pageforid=6927322#post-6927322" rel="nofollow">https://app.roll20.net/forum/post/6927322/script-hexploration-thread-2/?pageforid=6927322#post-6927322</a>

That would require a Pro subscription, of course. Since they will likely be moving on that map in accordance with GM supervision, you could use regular fog of war and manually reveal areas around the exploration token.