Datatypes might be confusing to new users
The edit mode is supposed to also be used by users how cannot write programming code. But if they try to create a new Property, they are confronted with the choice of Datatype. While some options are self-explanatory (TEXT) others are a mystery (DOUBLE).
Maybe, we should wording that is easier to understand ('decimal number', 'floating point', 'non-integer number') and only add the technical term as hover text.