I agree with the general point of view on school assignments these days : ). But it is what it is.
Looks like these points are taken directly from a book (Game Development Essentials: An Introduction) Link here for the page.
If i’m not mistaken “number of colors per texture” may be referring to the bit depth.
Slightly off topic: For the record poly count is being pushed these days well above the 80K mark, I recall Horizon had a few Robot characters in the 500K polycount. This is depending on the game and amount of characters on screen at one time plus a few other factors.