Its a text panel, it shows up when you write “panel” or you can do a double slash to write in it whilst openning in your case when you write "//1"a panel with 1 inside will appear on the canvas.
Its a text panel, it shows up when you write “panel” or you can do a double slash to write in it whilst openning in your case when you write "//1"a panel with 1 inside will appear on the canvas.