As You guys probably know, there are so-called "Capture the Flag" challenges. Specially prepared programs, images, documents, HTML pages, or sites contain a hidden message, called "flag". The message is hidden by simple but not that obvious means (no crypto keys breaking). So no JS, without bugs abuse, XML hacking - just plain Snap! (with libraries if told so).
If you discover the message, disclose only 2-3 new letters out of it to not destroy the fun (I hope) for others. After 24h I post the mega clue - the name of the well-known concept.
The red "Untitled" costumes seem to be, unintended, "honey spot" to draw attention to irrelevant aspects. I'll remove it, but in real life, it's quite a useful concept.
Also, the message is slightly "volatile". Some project manipulations make it vanish.
It's best to start with the freshly loaded project.