The X-2 went into the same stall Yeager had in the X-1A after passing Mach 2. However, Apt couldn’t pull out of the spin and was killed when the X-2 smashed into the ground after plunging 126,200 feet.
International orange is a “safety color” with worldwide recognition. The color is intended to increase the visibility of an object in multiple lighting and weather conditions.
Why was the Bell X-1 painted “international orange?”
The Golden Gate Bridge and several other bridges and tall buildings feature international orange color variants. This is to help prevent collisions with aircraft or, in the case of bridges, ships.