If you haven’t heard the news, Twitter has replaced the star for “favorites” and replaced it with a heart for “likes” throughout all their platforms including Vine.
Here is their official announcement and release:
We are changing our star icon for favorites to a heart and we’ll be calling them likes. We want to make Twitter easier and more rewarding to use, and we know that at times the star could be confusing, especially to newcomers. You might like a lot of things, but not everything can be your favorite.
The heart, in contrast, is a universal symbol that resonates across languages, cultures, and time zones. The heart is more expressive, enabling you to convey a range of emotions and easily connect with people. And in our tests, we found that people loved it.