Today's apples are small and medium sized, round with no ribbing but flattened so they don't roll. What looks like ribs in the photo are small bruises. ¶ The blush lies streaky red over a green that sometimes leans towards yellow, and the resulting variation in saturation of blush over variable shades makes for a variegated surface, sometimes dull red-green, sometimes orange, or yellow or green.
An amateur explores the pomaceous fruit