What is this hidden thing in the block editor?

[ten_6044]

See the red circle. What?

[bombmanyeeted]

What's this thing that shows up when you shift click on input options?

The Numbers menu (the only option in the Extensions menu) is a special menu that is used by 2 blocks in the colors and crayons library. [image] The reason it's there, is because it's a special menu that uses javascript, which chooses what the menu should be, depending on what is in the first input. For anyonw who is wondering, here's what @bombmanyeeted is refering to [image] (For some reason the checkboxes are snap icons in the options menu, but are emojis everywhere else.)

[ten_6044]

Why this menu is hidden?

[ego-lay_atman-bay]

because it's not intended to be used in other libraries.