Facebook Messenger is undergoing a redesign and gaining several new functionalities, such as support for chat themes, personalized reactions, and, in the near future, selfie stickers and a vanish mode. These updates are part of Facebook’s revamped messaging system, revealed in late September, which for the first time enabled Instagram users to connect with Facebook contacts.

Instagram users were required to activate the updated feature set to access the cross-platform communication option, but Messenger users will not face a similar requirement.

Facebook announced this morning that the ability to communicate across apps with Instagram will soon be available to users throughout North America. (The initial Instagram announcement did not specify which regions would be the first to receive the update.)

Visually, a key change—reflecting Messenger’s expanded cross-platform messaging—is the updated Messenger logo. It now shares a stylistic resemblance to Instagram, utilizing shades of blue, purple, and pink instead of the traditional Facebook blue.

Users will soon have access to new chat themes, including options like love and tie-dye, alongside custom reactions, allowing them to respond with a wider range of emojis than currently available.

Additional features are anticipated to launch “soon” after, including selfie stickers—which allow users to create stickers from their own photos—and a vanish mode for disappearing chats.

These features are identical to those recently released to Instagram users.

Prior to this update, Messenger had already introduced several new features, most recently the ability to watch videos together with friends and family within Messenger or Messenger Rooms.

Facebook’s decision to integrate users into a unified messaging platform with cross-app communication capabilities will present challenges for those considering switching to competing messaging applications. Why explore alternatives when a single app connects you to two major social networks? (And potentially, WhatsApp could be included in the future.)

This integration will also complicate any potential efforts to separate Facebook’s businesses, should regulators require it.

This announcement comes after last week’s antitrust report from the U.S. House Judiciary Committee, which suggested that Congress consider potential solutions to Facebook’s market dominance, including the possibility of dividing parts of the company. However, regulators may prioritize how Facebook acquires competitors to strengthen its position, rather than focusing on the operation of its current apps like Instagram and Messenger.