If you didn't know, Scratch introduced some new blocks on the second of February to try out and see if they fit in the editor. If you want to try them, check out the notes and credits. Just remember, they are experimental. You cannot run them in the normal scratch editor if you download them as a .sb3.
lab.scratch.mit.edu/face/ lab.scratch.mit.edu/text/ They are animated text and face sensing! Yes, these are official. :) If you want to know more, here is a guider: https://medium.com/@scratchfndn/scratch-lab-extending-creative-possibilities-and-play-5b131cc4d9de #animatedtext #animated #text #facesensing #face #sensing #newblocks #new #blocks