This view is about printing. Because printing is not easy, there are many technical aspects to be taken into account.
This module supports the printer’s ICC profile which is somewhat mandatory if you want to get a high quality print close to the image displayed on the screen.
It is important to note that ICC profiles provided by the paper and/or printer manufacturers cannot be used on GNU/Linux as they depend on the printer drivers. The darktable print module uses CUPS and there are no ready-to-use ICC profiles for this driver.