The red equal-sign all over Facebook Tuesday was part of a campaign in support of same-sex marriage.
Is your Facebook page suddenly flooded with pictures of a red equal-sign? Here's why.
The symbol was touted Tuesday by the Human Rights Campaign. On its Facebook page, HRC asks people to "wear red to show your support of marriage equality. And make your Facebook profile red too!"
The request came the same day the Supreme Court began hearing arguments for and against Proposition 8, a controversial law banning gay marriage in California