Tap on the emoji that you want to react with. To react to a message, touch and hold it until you see the reaction menu. Whether you want to create a poll, end a conversation, or simply express your emotions, reacting directly to the message comes in handy. Signal gives you the feature to react to messages, just like in Facebook Messenger. Tap on Appearance.Ĭhoose Dark mode under Theme. Tap on the profile picture icon at the top-left corner. To enable dark mode on Android and iPhone, open the Signal app. Like all other social apps, even Signal Messenger supports built-in dark mode. And she recently completed a term as Senior Advisor on AI to the Chair at the US Federal Trade Commission.Download Signal on iPhone/iPad 1. She has advised the White House, the FCC, the City of New York, the European Parliament, and many other governments and civil society organizations on privacy, security, artificial intelligence, internet policy, and measurement. She was one of the core organizers pushing back against the company's insufficient response to concerns about AI and its harms, and was a central organizer of the Google Walkout. She also helped lead organizing at Google. Prior to NYU, she worked at Google for over a decade, where she led product and engineering teams, founded Google's Open Research Group, and co-founded M-Lab, a globally distributed network measurement platform that now provides the world's largest source of open data on internet performance. Her research and scholarly work helped shape global AI policy and shift the public narrative on AI to better recognize the surveillance business practices and concentration of industrial resources that modern AI requires. Before joining Signal as President, she was the Minderoo Research Professor at NYU, and served as the Faculty Director of the AI Now Institute which she co-founded. She has over 17 years of experience in tech, spanning industry, academia, and government. Meredith Whittaker is Signal's President and a member of the Signal Foundation Board of Directors.

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