Colour saturation, brightness and dynamic range are every bit as impressive as a Retina panel, and though the Studio's pixel density is marginally lower, you'll need to be close enough to lick the screen
before individual pixels become visible.
-- The game is not «retextured in 1080p» because that doesn't make sense; it does appear that many (but not all) of the textures themselves are of higher resolution than
before (taking advantage of more RAM and more storage medium space), but saying it's been «retextured in 1080p» is misleading — 1080p is a screen resolution describing 1920 × 1080 screen
pixels, which has nothing to do with the dimensions of any
individual texture applied to
individual polygons.