|Main Image||1||240 x 240|
|Sticker Images||Either 8, 16,
|Up to 370 x 320|
|Chat Thumbnail Icon||1||96 x 74|
Creator, Sticker Title, and Sticker Description
Chat Thumbnail Icon
There's no need to include a margin around your trimmed image. Appropriate margins are added automatically between users' profile images and the sticker in chat.