2.0251 Space, time, and color (coloredness) are forms of objects.
Bear in mind 2.0141 ("The possibility of its occurrence in states of affairs is the form of an object.") So space, time, and color are possibilities of objects occurring in states of affairs. "Forms of objects" then are what I have been calling dimensions. An object's form is the dimension, or set of dimensions, in which it exists as a possibility, or the representative of that possibility.