I use the unit "System.UITypes" because after upgrading to FPC 3.2.2 (Lazarus 2.1.0 r65219 FPC 3.2.2 x86_64-win64-win32/win64) I got the info that "UITypes" is deprecated.
However, when I now click on a component of my form, I get annoyingly always the unit System.UITypes displayed. Here is an example in which I just select a checkbox: