When a block is in the a palette, it gives you information about the types its fields accept. When it's on the canvas, it doesn't. It would be nice for empty fields to always show type info.
It should be noted that making this change would necessitate a visual distinction between information input by the user, and the type info. This is especially true for text and number fields. Right now, typing "text" into a text field will look the same as the type info, and typing "0" looks the same as the number type info.
It should be noted that making this change would necessitate a visual distinction between information input by the user, and the type info. This is especially true for text and number fields. Right now, typing "text" into a text field will look the same as the type info, and typing "0" looks the same as the number type info.