After some actions, the dot2 gives you directly feedback in color form.
The following examples will explain it.
Gray color indicates a not selected object. It is the default color.
Yellow color indicates a selected object, e.g. fixture or group.
Red color indicates that this value comes from the programmer and you can store it, e.g. preset type bar or fixtures sheet view.
Purple color indicates a running effect in the fixtures view or in the title bar of the preset types if the low or high values are visible for effects. In the preset pools it indicates a stored effect.