If a line in wiki text starts with a colon (:), the line is indented. If we go to the end of such a line in VE and press Enter, the new paragraph is also indented. I don't think this is expected or useful behavior. At the very least, there should be a way to remove the indentation of the new paragraph, but there is none.
I propose that the items "Decrease Indentation" and "Increase Indentation" in the list menu should be applicable to arbitrary paragraphs and should remove or insert colons at the beginning of the line.