Feature Request: Change picture of pins after clicking

[J-J-E]

Changing the pin color allows users to more easily see what they have watched and have not watched especially in the more crowded areas

[ThePatr10t]

Note to myself. Might implement later with the following reference implementation, but note : colors would be lost whenever the page reloads.

https://stackoverflow.com/questions/31196426/change-marker-color-onclick