I noticed that, once I upvote a topic, the upvoted button doesn't change its colour. Only when I clicked it again, I got the popup notification saying that I have already upvoted the topic.

This is inconvenient when a user has a habit of upvoting/downvoting the topics he/she sees. There needs to be a coloured mark on these buttons to show a registered user whether he/she has already upvoted/downvoted the topic.

Please help me if there is some setting where I can make this happen or some custom CSS that I can add.

Thanks.