[Suggestion] Add a constraint on UIControl.Control reference type by attribute

[mtszkarbowiak]

(Low priority, to discuss)

The UIControl.Control indirection reduces editor's reference type checking abilities, because all script references are just UIControl. The suggestion is to add an attribute that could put type constraint on the control. Example:

[Serialize, ControlType<Button>()]
public UIControl MyGreatButton;

The editor would limit the selectable controls to only buttons and would inform a developer that the UIControl's Control type has changed type that disobeys the contraint.