Block blue light setting just appeared on my notification bar.

I'm running Pure Nexus, and it's not been updated in a while, so I know it's not the rom, but I've not been able to find what app is now causing this "block blue light" setting to appear on my notification pulldown menu. I really don't like these new stuff being added without my knowledge.

Edit I think I found it, my Buzz Launcher was the culprit.

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