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TRIBUNE MEDIA–Facebook users all over the world are showing their support for the Paris terrorist attack victims with a profile photo filter.

All you have to do is click “Try it” in the link below to change your image.

The filter is the colors of the French flag and is similar to the rainbow option Facebook offered when same-sex marriage was legalized in the U.S.

ISIS has claimed responsibility for the worst violence witnessed in France since World War II, a volley of nearly simultaneous terror attacks that the French President called “an act of war.”

The assailants targeted six sites Friday night in Paris. French authorities put the number of dead at 129, though the death toll is expected to fluctuate.